| 1 | Distribution and quantification of activated platelets in platelet-rich fibrin matrices | 2.5 | 19 | Citations (PDF) |
| 2 | Preparation, characterization and biological properties of a novel bone block composed of platelet rich fibrin and a deproteinized bovine bone mineral | 3.9 | 21 | Citations (PDF) |
| 3 | Nanoparticles Promote Bacterial Antibiotic Tolerance via Inducing Hyperosmotic Stress Response | 11.6 | 15 | Citations (PDF) |
| 4 | The effect of resting and compression time post-centrifugation on the characteristics of platelet rich fibrin (PRF) membranes | 2.9 | 11 | Citations (PDF) |
| 5 | Comparison of the effects of platelet concentrates produced by high and low-speed centrifugation protocols on the healing of critical-size defects in rat calvaria: a microtomographic and histomorphometric study | 2.5 | 8 | Citations (PDF) |
| 6 | Blood Clots versus PRF: Activating TGF-β Signaling and Inhibiting Inflammation In Vitro | 4.5 | 20 | Citations (PDF) |
| 7 | Histological comparison of Platelet rich fibrin clots prepared by fixed-angle versus horizontal centrifugation | 2.5 | 72 | Citations (PDF) |
| 8 | Biological characterization of an injectable platelet-rich fibrin mixture consisting of autologous albumin gel and liquid platelet-rich fibrin (Alb-PRF) | 2.5 | 98 | Citations (PDF) |
| 9 | Cell‐Membrane‐Display Nanotechnology | 8.8 | 50 | Citations (PDF) |
| 10 | Use of platelet-rich fibrin for the treatment of periodontal intrabony defects: a systematic review and meta-analysis | 2.9 | 143 | Citations (PDF) |
| 11 | Liquid PRF Reduces the Inflammatory Response and Osteoclastogenesis in Murine Macrophages | 5.1 | 36 | Citations (PDF) |
| 12 | Platelet-Rich Fibrin Increases BMP2 Expression in Oral Fibroblasts via Activation of TGF-β Signaling | 4.5 | 24 | Citations (PDF) |
| 13 | Combination of enamel matrix derivative and hyaluronic acid inhibits lipopolysaccharide-induced inflammatory response on human epithelial and bone cells | 2.9 | 16 | Citations (PDF) |
| 14 | Platelet-Rich Fibrin Decreases the Inflammatory Response of Mesenchymal Cells | 4.5 | 38 | Citations (PDF) |
| 15 | Cross-linked hyaluronic acid slows down collagen membrane resorption in diabetic rats through reducing the number of macrophages | 2.9 | 9 | Citations (PDF) |
| 16 | Structure, Barrier Function, and Bioactivity of Platelet-Rich Fibrin Following Thermal Processing | 2.5 | 7 | Citations (PDF) |
| 17 | Extending the working properties of liquid platelet-rich fibrin using chemically modified PET tubes and the Bio-Cool device | 2.9 | 15 | Citations (PDF) |
| 18 | Anti‐inflammation effects of injectable platelet‐rich fibrin via macrophages and dendritic cells | 4.3 | 82 | Citations (PDF) |
| 19 | Relative Centrifugal Force (RCF; G-Force) Affects the Distribution of TGF-β in PRF Membranes Produced Using Horizontal Centrifugation | 4.5 | 15 | Citations (PDF) |
| 20 | Antibacterial effects of platelet-rich fibrin produced by horizontal centrifugation | 11.0 | 71 | Citations (PDF) |
| 21 | Liquid Platelet-Rich Fibrin and Heat-Coagulated Albumin Gel: Bioassays for TGF-β Activity | 2.9 | 28 | Citations (PDF) |
| 22 | Evaluation of 24 protocols for the production of platelet-rich fibrin | 3.0 | 76 | Citations (PDF) |
| 23 | Improved growth factor delivery and cellular activity using concentrated platelet-rich fibrin (C-PRF) when compared with traditional injectable (i-PRF) protocols | 2.9 | 79 | Citations (PDF) |
| 24 | Autologous Versatile Vesicles‐Incorporated Biomimetic Extracellular Matrix Induces Biomineralization | 17.0 | 39 | Citations (PDF) |
| 25 | In Vitro Comparison of Macrophage Polarization and Osteoblast Differentiation Potentials between Granules and Block Forms of Deproteinized Bovine Bone Mineral | 2.9 | 6 | Citations (PDF) |
| 26 | Platelet-Rich Fibrin Can Neutralize Hydrogen Peroxide-Induced Cell Death in Gingival Fibroblasts | 5.9 | 24 | Citations (PDF) |
| 27 | Use of platelet-rich fibrin for the treatment of gingival recessions: a systematic review and meta-analysis | 2.9 | 86 | Citations (PDF) |
| 28 | Reply from authors: RE: Optimized platelet‐rich fibrin with the low‐speed concept: Growth factor release, biocompatibility, and cellular response | 3.8 | 16 | Citations (PDF) |
| 29 | Telomere length and genetic variations affecting telomere length as biomarkers for facial regeneration with platelet‐rich fibrin based on the low‐speed centrifugation concept | 2.0 | 10 | Citations (PDF) |
| 30 | Modulating macrophage polarization on titanium implant surface by poly(dopamine)‐assisted immobilization of IL4 | 3.7 | 23 | Citations (PDF) |
| 31 | Effect of Liquid Platelet-rich Fibrin and Platelet-rich Plasma on the Regenerative Potential of Dental Pulp Cells Cultured under Inflammatory Conditions: A Comparative Analysis | 3.3 | 43 | Citations (PDF) |
| 32 | A novel method for evaluating and quantifying cell types in platelet rich fibrin and an introduction to horizontal centrifugation | 4.3 | 168 | Citations (PDF) |
| 33 | Effect of the degree of conversion of resin-based composites on cytotoxicity, cell attachment, and gene expression | 3.8 | 60 | Citations (PDF) |
| 34 | Hyaluronic acid slows down collagen membrane degradation in uncontrolled diabetic rats | 3.5 | 32 | Citations (PDF) |
| 35 | Effect of enamel matrix derivative liquid in combination with a natural bone mineral on new bone formation in a rabbit GBR model | 4.7 | 10 | Citations (PDF) |
| 36 | Fluid platelet‐rich fibrin stimulates greater dermal skin fibroblast cell migration, proliferation, and collagen synthesis when compared to platelet‐rich plasma | 2.0 | 62 | Citations (PDF) |
| 37 | Extracellular vesicles derived from the mid-to-late stage of osteoblast differentiation markedly enhance osteogenesis in vitro and in vivo | 2.1 | 58 | Citations (PDF) |
| 38 | A proposed mechanism for material-induced heterotopic ossification | 14.0 | 156 | Citations (PDF) |
| 39 | The interactions of dendritic cells with osteoblasts on titanium surfaces: an in vitro investigation | 2.9 | 14 | Citations (PDF) |
| 40 | HnRNPL inhibits the osteogenic differentiation of PDLCs stimulated by SrCl<sub>2</sub> through repressing Setd2 | 4.1 | 21 | Citations (PDF) |
| 41 | Biologization of Collagen-Based Biomaterials Using Liquid-Platelet-Rich Fibrin: New Insights into Clinically Applicable Tissue Engineering | 2.9 | 51 | Citations (PDF) |
| 42 | Injectable-platelet rich fibrin using the low speed centrifugation concept improves cartilage regeneration when compared to platelet-rich plasma | 2.5 | 89 | Citations (PDF) |
| 43 | A low-speed centrifugation concept leads to cell accumulation and vascularization of solid platelet-rich fibrin: an experimental study <i>in vivo</i> | 2.5 | 71 | Citations (PDF) |
| 44 | Comparison of platelet-rich fibrin (PRF) produced using 3 commercially available centrifuges at both high (~ 700 g) and low (~ 200 g) relative centrifugation forces | 2.9 | 77 | Citations (PDF) |
| 45 | A novel method for harvesting concentrated platelet-rich fibrin (C-PRF) with a 10-fold increase in platelet and leukocyte yields | 2.9 | 76 | Citations (PDF) |
| 46 | Allogenic tooth transplantation using 3D printing: A case report and review of the literature | 1.1 | 7 | Citations (PDF) |
| 47 | Superior bone‐inducing potential of rhBMP9 compared to rhBMP2 | 4.3 | 25 | Citations (PDF) |
| 48 | Setd7 and its contribution to Boron-induced bone regeneration in Boron-mesoporous bioactive glass scaffolds | 9.4 | 42 | Citations (PDF) |
| 49 | Inorganic Self-Assembled Bioactive Artificial Proto-Osteocells Inducing Bone Regeneration | 8.0 | 16 | Citations (PDF) |
| 50 | Effects of an injectable platelet-rich fibrin on osteoblast behavior and bone tissue formation in comparison to platelet-rich plasma | 2.5 | 219 | Citations (PDF) |
| 51 | Multinucleated Giant Cells: Good Guys or Bad Guys? | 5.9 | 132 | Citations (PDF) |
| 52 | Pretreated Macrophage‐Membrane‐Coated Gold Nanocages for Precise Drug Delivery for Treatment of Bacterial Infections | 24.5 | 303 | Citations (PDF) |
| 53 | Recombinant human BMP9 (RhBMP9) in comparison with rhBMP2 for ridge augmentation following tooth extraction: An experimental study in the Beagle dog | 4.7 | 17 | Citations (PDF) |
| 54 | EZH1 Is Associated with TCP-Induced Bone Regeneration through Macrophage Polarization | 2.8 | 12 | Citations (PDF) |
| 55 | Autologous liquid platelet rich fibrin: A novel drug delivery system | 9.4 | 134 | Citations (PDF) |
| 56 | Near-infrared light-triggered drug delivery system based on black phosphorus for in vivo bone regeneration | 12.3 | 149 | Citations (PDF) |
| 57 | The Role of Mst1 in Lymphocyte Homeostasis and Function | 5.1 | 21 | Citations (PDF) |
| 58 | Fifteen Years of Platelet Rich Fibrin in Dentistry and Oromaxillofacial Surgery: How High is the Level of Scientific Evidence? | 1.0 | 118 | Citations (PDF) |
| 59 | The effect of age, gender, and time between blood draw and start of centrifugation on the size outcomes of platelet-rich fibrin (PRF) membranes | 2.9 | 66 | Citations (PDF) |
| 60 | Collagen barrier membranes adsorb growth factors liberated from autogenous bone chips | 4.7 | 49 | Citations (PDF) |
| 61 | Osteogenic potential of rhBMP9 combined with a bovine‐derived natural bone mineral scaffold compared to rhBMP2 | 4.7 | 43 | Citations (PDF) |
| 62 | Osteogain improves osteoblast adhesion, proliferation and differentiation on a bovine‐derived natural bone mineral | 4.7 | 20 | Citations (PDF) |
| 63 | Injectable platelet rich fibrin (i-PRF): opportunities in regenerative dentistry? | 2.9 | 432 | Citations (PDF) |
| 64 | Comparison of the effects of recombinant human bone morphogenetic protein-2 and -9 on bone formation in rat calvarial critical-size defects | 2.9 | 34 | Citations (PDF) |
| 65 | Response of human dental pulp cells to a silver-containing PLGA/TCP-nanofabric as a potential antibacterial regenerative pulp-capping material | 3.0 | 20 | Citations (PDF) |
| 66 | Setd2 is associated with strontium-induced bone regeneration | 9.4 | 32 | Citations (PDF) |
| 67 | In vitro effects of hyaluronic acid on human periodontal ligament cells | 3.0 | 51 | Citations (PDF) |
| 68 | Guided bone regeneration with recombinant human bone morphogenetic protein 9 loaded on either deproteinized bovine bone mineral or a collagen barrier membrane | 3.7 | 26 | Citations (PDF) |
| 69 | Bone conditioned media (BCM) improves osteoblast adhesion and differentiation on collagen barrier membranes | 3.0 | 14 | Citations (PDF) |
| 70 | In vitro evaluation of an injectable biphasic calcium phosphate (BCP) carrier system combined with recombinant human bone morphogenetic protein (rhBMP)-9 | 0.6 | 7 | Citations (PDF) |
| 71 | Effect of recombinant human bone morphogenic protein 9 (rhBMP9) loaded onto bone grafts versus barrier membranes on new bone formation in a rabbit calvarial defect model | 4.3 | 27 | Citations (PDF) |
| 72 | Use of platelet-rich fibrin in regenerative dentistry: a systematic review | 2.9 | 410 | Citations (PDF) |
| 73 | Effects of platelet rich plasma (PRP) on human gingival fibroblast, osteoblast and periodontal ligament cell behaviour | 3.0 | 30 | Citations (PDF) |
| 74 | Absorbable collagen sponges loaded with recombinant bone morphogenetic protein 9 induces greater osteoblast differentiation when compared to bone morphogenetic protein 2 | 2.4 | 22 | Citations (PDF) |
| 75 | Nanogel‐based scaffolds fabricated for bone regeneration with mesoporous bioactive glass and strontium: <i>In vitro</i> and <i>in vivo</i> characterization | 4.3 | 43 | Citations (PDF) |
| 76 | Effects of EMD liquid (Osteogain) on periodontal healing in class III furcation defects in monkeys | 6.6 | 22 | Citations (PDF) |
| 77 | Reduction of the relative centrifugal force influences cell number and growth factor release within injectable PRF-based matrices | 3.7 | 119 | Citations (PDF) |
| 78 | Healing of two‐wall intra‐bony defects treated with a novel EMD‐liquid—A pre‐clinical study in monkeys | 6.6 | 9 | Citations (PDF) |
| 79 | Temperature/pH-Sensitive Nanoantibiotics and Their Sequential Assembly for Optimal Collaborations between Antibacterial and Immunoregulation | 8.0 | 24 | Citations (PDF) |
| 80 | In vitro effects of 0 to 120 Grays of irradiation on bone viability and release of growth factors | 3.0 | 3 | Citations (PDF) |
| 81 | An in vitro study of fibrin sealant as a carrier system for recombinant human bone morphogenetic protein (rhBMP)–9 for bone tissue engineering | 2.0 | 12 | Citations (PDF) |
| 82 | In vitro characterization of an osteoinductive biphasic calcium phosphate in combination with recombinant BMP2 | 3.0 | 21 | Citations (PDF) |
| 83 | Tcf12, A Member of Basic Helix-Loop-Helix Transcription Factors, Mediates Bone Marrow Mesenchymal Stem Cell Osteogenic Differentiation In Vitro and In Vivo | 3.3 | 50 | Citations (PDF) |
| 84 | Optimized Platelet‐Rich Fibrin With the Low‐Speed Concept: Growth Factor Release, Biocompatibility, and Cellular Response | 3.8 | 377 | Citations (PDF) |
| 85 | Platelet-Rich Fibrin and Soft Tissue Wound Healing: A Systematic Review | 5.9 | 394 | Citations (PDF) |
| 86 | Growth factor delivery of BMP9 using a novel natural bovine bone graft with integrated atelo‐collagen type I: Biosynthesis, characterization, and cell behavior | 4.3 | 23 | Citations (PDF) |
| 87 | Behavior of Gingival Fibroblasts on Titanium Implant Surfaces in Combination with either Injectable-PRF or PRP | 4.5 | 112 | Citations (PDF) |
| 88 | Comparison of Two Porcine Collagen Membranes Combined with rhBMP-2 and rhBMP-9 on Osteoblast Behavior In Vitro | 1.5 | 7 | Citations (PDF) |
| 89 | The role of macrophage polarization on fibroblast behavior-an in vitro investigation on titanium surfaces | 2.9 | 35 | Citations (PDF) |
| 90 | Hyaluronic Acid Gel-Based Scaffolds as Potential Carrier for Growth Factors: An In Vitro Bioassay on Its Osteogenic Potential | 2.6 | 28 | Citations (PDF) |
| 91 | Twenty years of enamel matrix derivative: the past, the present and the future | 6.6 | 252 | Citations (PDF) |
| 92 | Influence of biphasic calcium phosphate surfaces coated with Enamel Matrix Derivative on vertical bone growth in an extra‐oral rabbit model | 4.7 | 12 | Citations (PDF) |
| 93 | Collagen Membranes Adsorb the Transforming Growth Factor‐β Receptor I Kinase‐Dependent Activity of Enamel Matrix Derivative | 3.8 | 31 | Citations (PDF) |
| 94 | Giant cells around bone biomaterials: Osteoclasts or multi-nucleated giant cells? | 9.4 | 110 | Citations (PDF) |
| 95 | Bone scaffolds loaded with siRNA-Semaphorin4d for the treatment of osteoporosis related bone defects | 3.5 | 33 | Citations (PDF) |
| 96 | Platelet-derived growth factor BB gene-released scaffolds: biosynthesis and characterization | 2.9 | 19 | Citations (PDF) |
| 97 | Addition of a Synthetically Fabricated Osteoinductive Biphasic Calcium Phosphate Bone Graft to <scp><scp>BMP2</scp></scp> Improves New Bone Formation | 3.7 | 33 | Citations (PDF) |
| 98 | Gene array of PDL cells exposed to Osteogain in combination with a bone grafting material | 2.9 | 6 | Citations (PDF) |
| 99 | Pre-coating deproteinized bovine bone mineral (DBBM) with bone-conditioned medium (BCM) improves osteoblast migration, adhesion, and differentiation in vitro | 2.9 | 11 | Citations (PDF) |
| 100 | Osteoinductive potential of a novel biphasic calcium phosphate bone graft in comparison with autographs, xenografts, and <scp>DFDBA</scp> | 4.7 | 82 | Citations (PDF) |
| 101 | Comparative release of growth factors from PRP, PRF, and advanced-PRF | 2.9 | 622 | Citations (PDF) |
| 102 | Recombinant Human Bone Morphogenetic Protein 9 (rhBMP9) Induced Osteoblastic Behavior on a Collagen Membrane Compared With rhBMP2 | 3.8 | 36 | Citations (PDF) |
| 103 | Osteoinductive potential of 4 commonly employed bone grafts | 2.9 | 86 | Citations (PDF) |
| 104 | OsteoMacs: Key players around bone biomaterials | 12.3 | 292 | Citations (PDF) |
| 105 | Effects of Antiseptic Solutions Commonly Used in Dentistry on Bone Viability, Bone Morphology, and Release of Growth Factors | 1.8 | 16 | Citations (PDF) |
| 106 | Effect of Enamel Matrix Derivative Liquid on Osteoblast and Periodontal Ligament Cell Proliferation and Differentiation | 3.8 | 31 | Citations (PDF) |
| 107 | Health, Maintenance, and Recovery of Soft Tissues around Implants | 3.7 | 129 | Citations (PDF) |
| 108 | Effect of hyaluronic acid on morphological changes to dentin surfaces and subsequent effect on periodontal ligament cell survival, attachment, and spreading | 2.9 | 30 | Citations (PDF) |
| 109 | Osteogenic gene array of osteoblasts cultured on a novel osteoinductive biphasic calcium phosphate bone grafting material | 2.9 | 12 | Citations (PDF) |
| 110 | Osteogain® loaded onto an absorbable collagen sponge induces attachment and osteoblast differentiation of ST2 cells in vitro | 2.9 | 10 | Citations (PDF) |
| 111 | Effects of air polishing and an amino acid buffered hypochlorite solution to dentin surfaces and periodontal ligament cell survival, attachment, and spreading | 2.9 | 12 | Citations (PDF) |
| 112 | Recombinant human bone morphogenetic protein (rhBMP)9 induces osteoblast differentiation when combined with demineralized freeze-dried bone allografts (DFDBAs) or biphasic calcium phosphate (BCP) | 2.9 | 11 | Citations (PDF) |
| 113 | Osteogenic potential of recombinant human bone morphogenetic protein-9/absorbable collagen sponge (rhBMP-9/ACS) in rat critical size calvarial defects | 2.9 | 16 | Citations (PDF) |
| 114 | Characterization of a shorter recombinant polypeptide chain of bone morphogenetic protein 2 on osteoblast behaviour | 3.0 | 8 | Citations (PDF) |
| 115 | Osteoinductive and Osteopromotive Variability among Different Demineralized Bone Allografts | 3.7 | 51 | Citations (PDF) |
| 116 | Antiseptic solutions modulate the paracrine‐like activity of bone chips: differential impact of chlorhexidine and sodium hypochlorite | 6.6 | 14 | Citations (PDF) |
| 117 | In vivo experimental study on bone regeneration in critical bone defects using PIB nanogels/boron-containing mesoporous bioactive glass composite scaffold | 5.8 | 39 | Citations (PDF) |
| 118 | Comparison of the Capacity of Enamel Matrix Derivative Gel and Enamel Matrix Derivative in Liquid Formulation to Adsorb to Bone Grafting Materials | 3.8 | 48 | Citations (PDF) |
| 119 | Variability in Particle Degradation of Four Commonly Employed Dental Bone Grafts | 3.7 | 18 | Citations (PDF) |
| 120 | Anabolic Bone Formation Via a Site-Specific Bone-Targeting Delivery System by Interfering With Semaphorin 4d Expression | 5.0 | 79 | Citations (PDF) |
| 121 | Is Photodynamic Therapy an Effective Treatment for Periodontal and Peri-Implant Infections? | 1.4 | 45 | Citations (PDF) |
| 122 | Impact of bone graft harvesting techniques on bone formation and graft resorption: a histomorphometric study in the mandibles of minipigs | 4.7 | 33 | Citations (PDF) |
| 123 | Enamel matrix derivative improves gingival fibroblast cell behavior cultured on titanium surfaces | 2.9 | 21 | Citations (PDF) |
| 124 | Bone grafting material in combination with Osteogain for bone repair: a rat histomorphometric study | 2.9 | 27 | Citations (PDF) |
| 125 | Periodontal Regeneration Using Strontium-Loaded Mesoporous Bioactive Glass Scaffolds in Osteoporotic Rats | 2.4 | 40 | Citations (PDF) |
| 126 | Osteogenic Properties of PBLG-g-HA/PLLA Nanocomposites | 2.4 | 24 | Citations (PDF) |
| 127 | Effect of Enamel Matrix Derivative on Periodontal Wound Healing and Regeneration in an Osteoporotic Model | 3.8 | 15 | Citations (PDF) |
| 128 | In vitro characterization of PBLG-g-HA/ PLLA nanocomposite scaffolds | 0.9 | 6 | Citations (PDF) |
| 129 | Effect of bone graft density on in vitro cell behavior with enamel matrix derivative | 2.9 | 11 | Citations (PDF) |
| 130 | Impact of Bone Harvesting Techniques on Cell Viability and the Release of Growth Factors of Autografts | 3.7 | 99 | Citations (PDF) |
| 131 | Strontium-incorporated mesoporous bioactive glass scaffolds stimulating<i>in vitro</i>proliferation and differentiation of bone marrow stromal cells and<i>in vivo</i>regeneration of osteoporotic bone defects | 5.6 | 99 | Citations (PDF) |
| 132 | In Vitro Evaluation of Demineralized Freeze‐Dried Bone Allograft in Combination With Enamel Matrix Derivative | 3.8 | 26 | Citations (PDF) |
| 133 | Five‐Year Results Evaluating the Effects of Platelet‐Rich Plasma on the Healing of Intrabony Defects Treated With Enamel Matrix Derivative and Natural Bone Mineral | 3.8 | 35 | Citations (PDF) |
| 134 | Influence of Enamel Matrix Derivative on Cells at Different Maturation Stages of Differentiation | 2.4 | 28 | Citations (PDF) |
| 135 | Effects of enamel matrix proteins in combination with a bovine-derived natural bone mineral for the repair of bone defects | 2.9 | 37 | Citations (PDF) |
| 136 | In vitro characterization of a synthetic calcium phosphate bone graft on periodontal ligament cell and osteoblast behavior and its combination with an enamel matrix derivative | 2.9 | 18 | Citations (PDF) |
| 137 | Enamel Matrix Protein Adsorption to Root Surfaces in the Presence or Absence of Human Blood | 3.8 | 21 | Citations (PDF) |
| 138 | Adsorption of Enamel Matrix Proteins to a Bovine‐Derived Bone Grafting Material and Its Regulation of Cell Adhesion, Proliferation, and Differentiation | 3.8 | 68 | Citations (PDF) |
| 139 | Osteoblast proliferation and differentiation on a barrier membrane in combination with BMP2 and TGFβ1 | 2.9 | 59 | Citations (PDF) |
| 140 | Enamel Matrix Proteins and Periodontal Wound Healing and Regeneration | 1.1 | 63 | Citations (PDF) |
| 141 | Premature Osteoblast Clustering by Enamel Matrix Proteins Induces Osteoblast Differentiation through Up-Regulation of Connexin 43 and N-Cadherin | 2.4 | 42 | Citations (PDF) |
| 142 | The effect of enamel matrix proteins on the spreading, proliferation and differentiation of osteoblasts cultured on titanium surfaces | 12.3 | 90 | Citations (PDF) |
| 143 | Title is missing! 0 | | 16 | Citations (PDF) |