| 1 | Botany | 41 | 2.2K | 282 | 277 |
| 2 | Biotechnology | 58 | 2.1K | 68 | 136 |
| 3 | Biochemistry | 56 | 1.7K | 249 | 441 |
| 4 | Molecular Biology | 52 | 1.4K | 314 | 796 |
| 5 | Microbiology | 40 | 1.3K | 140 | 228 |
| 6 | plant molecular biology | 13 | 1.0K | 147 | 126 |
| 7 | Plant diseases | 43 | 1.0K | 19 | 24 |
| 8 | Medicine | 26 | 940 | 618 | 865 |
| 9 | Plants | 21 | 902 | 110 | 184 |
| 10 | Science | 19 | 884 | 914 | 1645 |
| 11 | Biochemical Engineering | 11 | 877 | 96 | 147 |
| 12 | Cell Biology | 19 | 856 | 434 | 971 |
| 13 | Research | 18 | 767 | 591 | 531 |
| 14 | Plant Biotechnology | 16 | 741 | 49 | 88 |
| 15 | Plant cells | 9 | 665 | 288 | 302 |
| 16 | Plant genetic engineering | 10 | 661 | 99 | 108 |
| 17 | Pollution | 23 | 660 | 217 | 799 |
| 18 | Biophysics | 19 | 632 | 354 | 350 |
| 19 | Plant physiology | 5 | 595 | 348 | 148 |
| 20 | Genetic engineering | 10 | 574 | 62 | 71 |
| 21 | environmental pollution | 21 | 539 | 106 | 168 |
| 22 | Pharmaceutical Chemistry | 8 | 536 | 598 | 198 |
| 23 | Biomedical Engineering | 20 | 525 | 92 | 169 |
| 24 | Environmental pollutants | 14 | 503 | 81 | 80 |
| 25 | Genomics | 10 | 499 | 158 | 135 |
| 26 | Genetics | 9 | 494 | 384 | 467 |
| 27 | Plant Genetics | 2 | 489 | 57 | 25 |
| 28 | Environmental Toxicology | 17 | 488 | 59 | 96 |
| 28 | Clinical Chemistry | 3 | 488 | 269 | 77 |
| 30 | Chemistry | 28 | 477 | 1572 | 2962 |
| 31 | Breeding | 8 | 473 | 60 | 28 |
| 32 | Virology | 16 | 467 | 169 | 1009 |
| 33 | Toxicology | 20 | 451 | 168 | 289 |
| 34 | Australia | 9 | 395 | 251 | 104 |
| 35 | Biology | 22 | 387 | 1438 | 3325 |
| 36 | Water pollution | 12 | 370 | 57 | 88 |
| 37 | Industrial Microbiology | 2 | 369 | 256 | 64 |
| 38 | Environmental Health | 16 | 367 | 178 | 371 |
| 39 | Immunology | 10 | 342 | 521 | 883 |
| 40 | Medical Microbiology | 7 | 341 | 102 | 118 |
| 41 | Marine Biology | 8 | 332 | 90 | 80 |
| 42 | food technology | 8 | 327 | 470 | 397 |
| 43 | Environment | 8 | 326 | 848 | 1761 |
| 44 | Environmental monitoring | 14 | 318 | 122 | 200 |
| 45 | Ecology | 18 | 312 | 951 | 2322 |
| 46 | pollutants | 7 | 307 | 117 | 113 |
| 46 | gene mapping | 6 | 307 | 117 | 161 |
| 48 | Chromosome mapping | 4 | 294 | 142 | 117 |
| 49 | Agricultural Chemistry | 8 | 286 | 86 | 83 |
| 50 | Membranes | 5 | 283 | 61 | 66 |
| 51 | Aquaculture | 4 | 276 | 194 | 66 |
| 52 | environmental protection | 8 | 268 | 148 | 246 |
| 53 | Bioengineering | 22 | 260 | 107 | 626 |
| 54 | Food | 12 | 254 | 214 | 483 |
| 55 | environmental exposure | 5 | 250 | 176 | 112 |
| 56 | Marine Pollution | 6 | 242 | 26 | 38 |
| 57 | Diagnostic microbiology | 4 | 241 | 60 | 85 |
| 58 | Biomass Energy | 4 | 233 | 130 | 139 |
| 59 | nucleic acids | 4 | 224 | 160 | 219 |
| 60 | Microbial Ecology | 7 | 222 | 256 | 546 |
| 61 | Chemical Engineering | 6 | 219 | 985 | 936 |
| 62 | Technology | 17 | 209 | 226 | 883 |
| 63 | Catalysis | 5 | 203 | 952 | 734 |
| 64 | Metabolism | 4 | 194 | 809 | 821 |
| 65 | Analytical Chemistry | 2 | 191 | 1020 | 385 |
| 66 | Pharmacology | 9 | 186 | 1061 | 2058 |
| 67 | Environmental Microbiology | 4 | 181 | 327 | 493 |
| 68 | enzymes | 5 | 180 | 64 | 84 |
| 69 | Computational Biology | 8 | 174 | 207 | 588 |
| 70 | Molecular evolution | 2 | 167 | 249 | 165 |
| 71 | Yeast | 9 | 166 | 9 | 30 |
| 72 | Nanotechnology | 5 | 159 | 2003 | 2825 |
| 73 | Cytology | 9 | 155 | 771 | 2606 |
| 74 | Colloids | 3 | 153 | 379 | 343 |
| 75 | Physiology | 8 | 146 | 849 | 1923 |
| 76 | Vaccines | 5 | 142 | 106 | 139 |
| 77 | toxicity testing | 6 | 141 | 79 | 72 |
| 78 | Bioinformatics | 7 | 133 | 125 | 330 |
| 79 | Microbial Biotechnology | 7 | 128 | 26 | 45 |
| 80 | Molecular Genetics | 4 | 126 | 713 | 1094 |
| 81 | Evolution | 2 | 119 | 1095 | 1017 |
| 82 | viruses | 2 | 116 | 266 | 338 |
| 82 | Phytotherapy | 4 | 116 | 34 | 37 |
| 84 | drug therapy | 3 | 114 | 1202 | 1551 |
| 85 | Functional foods | 3 | 112 | 10 | 11 |
| 85 | Molecular structure | 6 | 112 | 289 | 501 |
| 87 | Water | 4 | 111 | 662 | 1123 |
| 88 | Quality Control | 3 | 103 | 325 | 226 |
| 88 | food handling | 3 | 103 | 105 | 80 |
| 90 | Molecular ecology | 3 | 101 | 899 | 1410 |
| 91 | drugs | 3 | 100 | 773 | 718 |
| 92 | Zoology | 3 | 99 | 901 | 787 |
| 93 | Nutrition | 4 | 98 | 1089 | 1771 |
| 94 | Animal Nutrition | 3 | 95 | 145 | 95 |
| 94 | Plant breeding | 3 | 95 | 121 | 95 |
| 94 | Allergy | 1 | 95 | 256 | 334 |
| 97 | food industry | 1 | 93 | 54 | 20 |
| 98 | biological evolution | 2 | 90 | 672 | 849 |
| 99 | Enzyme | 1 | 89 | 50 | 41 |
| 100 | Physics | 2 | 87 | 2956 | 3554 |
| 101 | Nanostructured Materials | 2 | 86 | 3798 | 4025 |
| 101 | Insect biochemistry | 3 | 86 | 44 | 47 |
| 103 | Food additives | 2 | 84 | 89 | 99 |
| 103 | hydrocolloids | 2 | 84 | 32 | 52 |
| 105 | Pathology | 2 | 83 | 1278 | 1565 |
| 105 | Diagnosis | 2 | 83 | 185 | 208 |
| 107 | Nanochemistry | 1 | 82 | 120 | 42 |
| 108 | Environmental Chemistry | 6 | 81 | 174 | 547 |
| 109 | Microorganisms | 2 | 80 | 118 | 171 |
| 110 | Surface Chemistry | 2 | 79 | 680 | 544 |
| 110 | Mycology | 3 | 79 | 162 | 158 |
| 112 | Parasitology | 3 | 77 | 174 | 227 |
| 113 | Parasites | 2 | 74 | 175 | 162 |
| 113 | plant communities | 2 | 74 | 730 | 1072 |
| 115 | Electrophoresis | 2 | 72 | 1163 | 848 |
| 116 | Nanobiotechnology | 2 | 71 | 27 | 51 |
| 116 | Transgenic plants | 2 | 71 | 52 | 62 |
| 118 | Environmental Engineering | 6 | 70 | 230 | 772 |
| 118 | cell physiology | 4 | 70 | 399 | 1337 |
| 120 | Microbial Genetics | 4 | 69 | 19 | 52 |
| 120 | Vegetation | 4 | 69 | 8 | 6 |
| 122 | Biodiversity | 5 | 67 | 471 | 1025 |
| 123 | soil microbiology | 1 | 66 | 207 | 233 |
| 124 | protein | 7 | 65 | 155 | 509 |
| 124 | proteins | 7 | 65 | 265 | 938 |
| 126 | Immunity | 2 | 63 | 766 | 1187 |
| 127 | Histology | 4 | 62 | 256 | 912 |
| 127 | Data Mining | 3 | 62 | 100 | 276 |
| 127 | Sustainable Engineering | 4 | 62 | 644 | 1532 |
| 127 | data collection | 3 | 62 | 74 | 145 |
| 131 | Chemotherapy | 1 | 61 | 446 | 287 |
| 132 | RNA | 2 | 60 | 74 | 197 |
| 133 | Phylogeny | 1 | 59 | 141 | 137 |
| 134 | food contamination | 1 | 58 | 356 | 153 |
| 134 | actuators | 1 | 58 | 275 | 252 |
| 134 | transducers | 1 | 58 | 275 | 252 |
| 137 | drug toxicity | 1 | 55 | 52 | 47 |
| 138 | Population Genetics | 1 | 54 | 1622 | 1853 |
| 138 | Japan | 1 | 54 | 749 | 311 |
| 138 | scientific societies | 3 | 54 | 392 | 808 |
| 141 | Polymers | 4 | 53 | 2264 | 3259 |
| 141 | Food Microbiology | 2 | 53 | 721 | 1372 |
| 143 | plant viruses | 2 | 52 | 21 | 23 |
| 144 | Building Materials | 1 | 51 | 135 | 150 |
| 144 | Pesticides | 3 | 51 | 22 | 28 |
| 146 | Oceanography | 1 | 49 | 1330 | 1079 |
| 146 | Fungi | 2 | 49 | 74 | 107 |
| 148 | Anthropology | 4 | 47 | 236 | 416 |
| 148 | Human biology | 4 | 47 | 150 | 235 |
| 150 | Green Chemistry | 2 | 46 | 1030 | 1762 |
| 150 | Genetic disorders | 1 | 46 | 880 | 890 |
| 150 | Health | 1 | 46 | 1924 | 1707 |
| 150 | Metabolic diseases | 1 | 46 | 1455 | 1666 |
| 154 | Molecular recognition | 1 | 45 | 152 | 86 |
| 155 | Host-parasite interactions | 1 | 43 | 255 | 422 |
| 155 | Virulence | 1 | 43 | 221 | 380 |
| 155 | Algal blooms | 1 | 43 | 29 | 41 |
| 155 | Cyanobacteria | 1 | 43 | 29 | 41 |
| 155 | microalgae | 1 | 43 | 29 | 41 |
| 160 | Agricultural Ecology | 1 | 42 | 875 | 1242 |
| 160 | Sustainable agriculture | 1 | 42 | 175 | 93 |
| 160 | food consumption | 1 | 42 | 15 | 12 |
| 160 | Therapeutics | 1 | 42 | 2026 | 2719 |
| 164 | Ultrasonics | 2 | 40 | 56 | 103 |
| 164 | Sonochemistry | 2 | 40 | 26 | 62 |
| 166 | carcinogens | 2 | 38 | 344 | 842 |
| 167 | pain management | 1 | 37 | 744 | 877 |
| 167 | pain | 1 | 37 | 905 | 1085 |
| 169 | Environmental Policy | 4 | 35 | 209 | 886 |
| 169 | Chemical industry | 1 | 35 | 892 | 675 |
| 169 | polymerization | 3 | 35 | 2104 | 3182 |
| 172 | Horticulture | 3 | 34 | 81 | 168 |
| 172 | Lipids | 1 | 34 | 504 | 627 |
| 174 | Protein engineering | 2 | 32 | 12 | 37 |
| 174 | molecular design | 2 | 32 | 12 | 34 |
| 176 | Pharmacogenetics | 1 | 31 | 215 | 385 |
| 176 | Biomarkers | 1 | 31 | 44 | 56 |
| 176 | gene therapy | 1 | 31 | 302 | 461 |
| 176 | Genetic therapy | 1 | 31 | 350 | 572 |
| 176 | biochemical markers | 1 | 31 | 241 | 463 |
| 181 | Reproduction | 2 | 30 | 940 | 1766 |
| 181 | genome | 3 | 30 | 203 | 713 |
| 183 | Biogeochemical cycles | 1 | 29 | 588 | 1155 |
| 183 | Gene expression regulation | 3 | 29 | 112 | 424 |
| 183 | Genetic regulation | 3 | 29 | 168 | 1200 |
| 186 | Biopharmaceutics | 1 | 28 | 166 | 213 |
| 186 | Neurochemistry | 4 | 28 | 474 | 2946 |
| 186 | Oxidative stress | 1 | 28 | 146 | 294 |
| 186 | Cellular senescence | 1 | 28 | 84 | 174 |
| 190 | Synthetic biology | 1 | 27 | 59 | 85 |
| 190 | nuclear magnetic resonance spectroscopy | 3 | 27 | 88 | 195 |
| 192 | Safety management | 1 | 26 | 72 | 84 |
| 192 | transport vesicles | 1 | 26 | 413 | 1232 |
| 194 | Medical Physics | 2 | 25 | 909 | 1455 |
| 194 | Environmental Management | 3 | 25 | 277 | 1259 |
| 194 | Nonlinear systems | 1 | 25 | 839 | 819 |
| 197 | Ecological Engineering | 2 | 24 | 42 | 95 |
| 197 | Analytical Biochemistry | 1 | 24 | 270 | 390 |
| 197 | Cancer | 1 | 24 | 4200 | 6262 |
| 200 | Organic Chemistry | 2 | 22 | 591 | 1018 |
| 201 | pigments | 1 | 21 | 90 | 120 |
| 202 | Pharmaceutical Technology | 1 | 20 | 1031 | 1293 |
| 202 | Bioorganic chemistry | 2 | 20 | 356 | 807 |
| 202 | catalytic activity | 1 | 20 | 861 | 1042 |
| 205 | Plastics | 1 | 18 | 1265 | 1667 |
| 206 | Signal Transduction | 1 | 17 | 406 | 808 |
| 207 | Electrochemistry | 2 | 16 | 1458 | 2787 |
| 208 | Environmental Law | 1 | 15 | 244 | 368 |
| 208 | Magnetic Resonance Spectroscopy | 1 | 15 | 1077 | 1480 |
| 208 | Korea | 1 | 15 | 111 | 100 |
| 208 | prostaglandins | 1 | 15 | 224 | 401 |
| 208 | Insects | 1 | 15 | 653 | 920 |
| 208 | NMR | 1 | 15 | 246 | 266 |
| 208 | Entomology | 1 | 15 | 1462 | 1892 |
| 208 | magnetic resonance | 1 | 15 | 284 | 309 |
| 216 | Medicinal plants | 3 | 14 | 65 | 312 |
| 216 | glycoproteins | 1 | 14 | 56 | 145 |
| 216 | Glycoconjugates | 1 | 14 | 56 | 145 |
| 216 | Oligosaccharides | 1 | 14 | 24 | 51 |
| 216 | glycolipids | 1 | 14 | 56 | 145 |
| 221 | Systems Biology | 3 | 13 | 182 | 809 |
| 221 | Neurotoxicology | 1 | 13 | 74 | 163 |
| 221 | Heterocyclic chemistry | 1 | 13 | 118 | 126 |
| 221 | Apoptosis | 1 | 13 | 27 | 72 |
| 221 | neurotoxins | 1 | 13 | 27 | 72 |
| 221 | Neurotoxic agents | 1 | 13 | 27 | 72 |
| 221 | Organometallic chemistry | 1 | 13 | 1790 | 2180 |
| 221 | Environmental Geochemistry | 1 | 13 | 53 | 90 |
| 221 | Asymmetric synthesis | 1 | 13 | 13 | 21 |
| 221 | Spectrum analysis | 1 | 13 | 1455 | 2255 |
| 221 | Fluorescence | 1 | 13 | 47 | 62 |
| 221 | Minerals | 1 | 13 | 67 | 117 |
| 221 | Nerve regeneration | 1 | 13 | 27 | 72 |
| 234 | X-ray spectroscopy | 1 | 12 | 70 | 107 |
| 234 | nuclear magnetic resonance | 2 | 12 | 531 | 1406 |
| 234 | plankton | 1 | 12 | 24 | 45 |
| 234 | United Kingdom | 1 | 12 | 532 | 985 |
| 238 | Clinical Pharmacology | 1 | 11 | 2344 | 4357 |
| 238 | Forest Ecology | 1 | 11 | 89 | 182 |
| 240 | Pharmacognosy | 2 | 10 | 136 | 468 |
| 240 | Marine Ecology | 1 | 10 | 160 | 331 |
| 240 | Veterinary Pathology | 1 | 10 | 356 | 576 |
| 240 | Animal breeding | 1 | 10 | 399 | 663 |
| 240 | Electrochemical Analysis | 1 | 10 | 632 | 1150 |
| 240 | ecosystem | 1 | 10 | 845 | 1898 |
| 246 | Biological Systems | 1 | 9 | 91 | 200 |
| 247 | Medical Laboratory Science | 1 | 8 | 308 | 691 |
| 247 | Sports Medicine | 2 | 8 | 875 | 2995 |
| 247 | Biotransformation | 1 | 8 | 10 | 24 |
| 247 | Drug design | 1 | 8 | 914 | 2071 |
| 247 | Interferons | 1 | 8 | 26 | 84 |
| 247 | Antibodies | 1 | 8 | 68 | 188 |
| 247 | Antigens | 1 | 8 | 185 | 483 |
| 247 | Cytokine | 1 | 8 | 42 | 140 |
| 255 | Geology | 3 | 7 | 801 | 3249 |
| 255 | Molecular Microbiology | 1 | 7 | 739 | 1736 |
| 255 | Seed technology | 1 | 7 | 2 | 1 |
| 255 | Waste management | 1 | 7 | 197 | 613 |
| 255 | water supply | 1 | 7 | 1622 | 3574 |
| 255 | Seeds | 1 | 7 | 2 | 1 |
| 255 | Biomolecules | 1 | 7 | 689 | 1885 |
| 255 | biopolymers | 1 | 7 | 808 | 2068 |
| 263 | Kinesiology | 1 | 6 | 19 | 55 |
| 263 | Neurobiology | 1 | 6 | 1007 | 2789 |
| 263 | Ornithology | 1 | 6 | 404 | 875 |
| 263 | Birds | 1 | 6 | 490 | 970 |
| 267 | Animal health | 1 | 5 | 29 | 54 |
| 267 | Metrology | 1 | 5 | 16 | 30 |
| 267 | Agriculture | 1 | 5 | 1469 | 3391 |
| 270 | Computer Science | 1 | 4 | 474 | 986 |
| 270 | Alternative Medicine | 1 | 4 | 317 | 874 |
| 270 | Biodiversity conservation | 1 | 4 | 2368 | 5217 |
| 270 | complementary therapies | 1 | 4 | 365 | 980 |
| 270 | Nanoparticles | 1 | 4 | 4500 | 9212 |
| 270 | Nanostructures | 1 | 4 | 342 | 846 |
| 270 | Traditional medicine | 1 | 4 | 32 | 84 |
| 270 | biological factors | 1 | 4 | 1484 | 3913 |
| 270 | Africa | 1 | 4 | 495 | 1160 |
| 270 | miniaturization | 1 | 4 | 377 | 880 |
| 280 | Phytochemistry | 1 | 3 | 34 | 77 |
| 280 | Histochemistry | 1 | 3 | 257 | 688 |
| 280 | Lymphoma | 1 | 3 | 87 | 100 |
| 280 | Multiple Myeloma | 1 | 3 | 86 | 92 |
| 280 | Phytoremediation | 1 | 3 | 34 | 77 |
| 280 | environmental remediation | 1 | 3 | 34 | 87 |
| 280 | Bioreactors | 1 | 3 | 34 | 77 |
| 280 | Leukemia | 1 | 3 | 223 | 482 |
| 280 | Parasitic Diseases | 1 | 3 | 235 | 590 |
| 280 | plant health | 1 | 3 | 18 | 24 |
| 290 | Education | 1 | 2 | 1630 | 3430 |
| 290 | Chronobiology | 2 | 2 | 29 | 121 |
| 290 | Information Systems | 1 | 2 | 159 | 460 |
| 290 | Soil Science | 1 | 2 | 620 | 1732 |
| 290 | biological clocks | 2 | 2 | 29 | 121 |
| 290 | Biogeochemistry | 1 | 2 | 110 | 265 |
| 290 | Sports | 1 | 2 | 1261 | 3243 |
| 290 | Teaching | 1 | 2 | 785 | 1703 |
| 290 | Geobiology | 1 | 2 | 688 | 1913 |
| 290 | Hormones | 1 | 2 | 199 | 647 |
| 290 | natural products | 1 | 2 | 194 | 416 |
| 290 | circadian rhythm | 2 | 2 | 29 | 121 |
| 290 | water reuse | 1 | 2 | 26 | 56 |
| 290 | Transplantation | 2 | 2 | 1049 | 4584 |
| 290 | biological rhythms | 2 | 2 | 29 | 120 |
| 290 | nanoscience | 1 | 2 | 598 | 1418 |
| 290 | Steroids | 2 | 2 | 149 | 738 |
| 290 | cell interaction | 1 | 2 | 288 | 867 |
| 290 | biological agents | 1 | 2 | 69 | 132 |
| 290 | Cell communication | 1 | 2 | 218 | 705 |
| 290 | Exercise | 1 | 2 | 429 | 1321 |
| 290 | cycles | 2 | 2 | 12 | 33 |
| 312 | Public Health | 1 | 1 | 3758 | 9173 |
| 312 | Mutagenesis | 1 | 1 | 75 | 213 |
| 312 | teratogenic agents | 1 | 1 | 41 | 118 |
| 312 | Invertebrates | 1 | 1 | 171 | 489 |
| 312 | Tropical Medicine | 1 | 1 | 1603 | 4147 |
| 312 | Dementia | 1 | 1 | 2032 | 3953 |
| 312 | Alzheimer's disease | 1 | 1 | 2057 | 3997 |
| 319 | Geography | 1 | 0 | 1850 | 4825 |
| 319 | Mathematics | 1 | 0 | 4872 | 8500 |
| 319 | Engineering Mathematics | 1 | 0 | 1143 | 3013 |
| 319 | Ichthyology | 1 | 0 | 237 | 707 |
| 319 | energy conservation | 1 | 0 | 1082 | 3106 |
| 319 | Mycotoxins | 1 | 0 | 17 | 40 |
| 319 | animal diseases | 1 | 0 | 47 | 151 |
| 319 | hygiene | 1 | 0 | 95 | 235 |
| 319 | Fisheries | 1 | 0 | 902 | 2324 |
| 319 | Fish | 1 | 0 | 230 | 690 |
