| # | Title | Journal | Year | Citations |
|---|
| 1 | Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study | Thorax | 2003 | 2,415 |
| 2 | Surgical repair of tricuspid atresia | Thorax | 1971 | 2,405 |
| 3 | Usefulness of the Medical Research Council (MRC) dyspnoea scale as a measure of disability in patients with chronic obstructive pulmonary disease | Thorax | 1999 | 2,156 |
| 4 | Relationship between exacerbation frequency and lung function decline in chronic obstructive pulmonary disease | Thorax | 2002 | 1,849 |
| 5 | Severe acute exacerbations and mortality in patients with chronic obstructive pulmonary disease | Thorax | 2005 | 1,529 |
| 6 | A measure of quality of life for clinical trials in chronic lung disease. | Thorax | 1987 | 1,476 |
| 7 | Association between chronic obstructive pulmonary disease and systemic inflammation: a systematic review and a meta-analysis | Thorax | 2004 | 1,441 |
| 8 | Role of lopinavir/ritonavir in the treatment of SARS: initial virological and clinical findings | Thorax | 2004 | 1,361 |
| 9 | A technique for complete replacement of the ascending aorta | Thorax | 1968 | 1,231 |
| 10 | Development of a shuttle walking test of disability in patients with chronic airways obstruction. | Thorax | 1992 | 1,152 |
| 11 | Management of spontaneous pneumothorax: British Thoracic Society pleural disease guideline 2010 | Thorax | 2010 | 1,047 |
| 12 | Evaluation of impairment of health related quality of life in asthma: development of a questionnaire for use in clinical trials. | Thorax | 1992 | 1,039 |
| 13 | BTS guidelines for the management of community acquired pneumonia in adults: update 2009 | Thorax | 2009 | 1,039 |
| 14 | Worldwide trends in the prevalence of asthma symptoms: phase III of the International Study of Asthma and Allergies in Childhood (ISAAC) | Thorax | 2007 | 988 |
| 15 | Family size, infection and atopy: the first decade of the 'hygiene hypothesis' | Thorax | 2000 | 936 |
| 16 | Regular physical activity reduces hospital admission and mortality in chronic obstructive pulmonary disease: a population based cohort study | Thorax | 2006 | 881 |
| 17 | British Thoracic Society guideline for non-CFbronchiectasis | Thorax | 2010 | 838 |
| 18 | Clinical and economic burden of community-acquired pneumonia among adults in Europe | Thorax | 2012 | 827 |
| 19 | Use of induced sputum cell counts to investigate airway inflammation in asthma. | Thorax | 1992 | 814 |
| 20 | Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) | Thorax | 2009 | 806 |
| 21 | Epidemiological time series studies of PM2.5and daily mortality and hospital admissions: a systematic review and meta-analysis | Thorax | 2014 | 760 |
| 22 | Development of a symptom specific health status measure for patients with chronic cough: Leicester Cough Questionnaire (LCQ) | Thorax | 2003 | 752 |
| 23 | Smoking cessation guidelines for health professionals: an update | Thorax | 2000 | 750 |
| 24 | British Thoracic Society guidelines for the management of community acquired pneumonia in children: update 2011 | Thorax | 2011 | 728 |
| 25 | Analysis of induced sputum in adults with asthma: identification of subgroup with isolated sputum neutrophilia and poor response to inhaled corticosteroids | Thorax | 2002 | 711 |
| 26 | Effect of encouragement on walking test performance. | Thorax | 1984 | 698 |
| 27 | Rapid method for measurement of bronchial responsiveness. | Thorax | 1983 | 687 |
| 28 | Current best practice for nebuliser treatment. British Thoracic Society Nebulizer Project Groupx [published erratum appears in Thorax 1997 Sep;52(9):838] | Thorax | 1997 | 676 |
| 29 | Indoor air pollution in developing countries and acute lower respiratory infections in children | Thorax | 2000 | 667 |
| 30 | Broncho-pulmonary Aspergillosis : A Review and a Report of Eight New Cases | Thorax | 1952 | 664 |
| 31 | Non-invasive ventilation in acute respiratory failure | Thorax | 2002 | 657 |
| 32 | British Guideline on the Management of Asthma | Thorax | 2008 | 655 |
| 33 | Management of a malignant pleural effusion: British Thoracic Society pleural disease guideline 2010 | Thorax | 2010 | 646 |
| 34 | British Thoracic Society guidelines for the management of suspected acute pulmonary embolism | Thorax | 2003 | 642 |
| 35 | ‘Long-COVID’: a cross-sectional study of persisting symptoms, biomarker and imaging abnormalities following hospitalisation for COVID-19 | Thorax | 2021 | 636 |
| 36 | Interstitial lung disease guideline | Thorax | 2008 | 633 |
| 37 | Correlation between exhaled nitric oxide, sputum eosinophils, and methacholine responsiveness in patients with mild asthma. | Thorax | 1998 | 632 |
| 38 | British Thoracic Society guidelines for the investigation and management of pulmonary nodules: accredited by NICE | Thorax | 2015 | 631 |
| 39 | A comparison of the quantitative anatomy of the bronchi in normal subjects, in status asthmaticus, in chronic bronchitis, and in emphysema | Thorax | 1969 | 622 |
| 40 | Relation of sputum inflammatory markers to symptoms and lung function changes in COPD exacerbations | Thorax | 2000 | 616 |
| 41 | Risk factors of readmission to hospital for a COPD exacerbation: a prospective study | Thorax | 2003 | 612 |
| 42 | The clinical spectrum of pulmonary aspergillosis | Thorax | 2015 | 611 |
| 43 | British Thoracic Society guideline for diagnostic flexible bronchoscopy in adults: accredited by NICE | Thorax | 2013 | 601 |
| 44 | Lung sequestration: report of seven cases and review of 540 published cases | Thorax | 1979 | 597 |
| 45 | Quadriceps strength predicts mortality in patients with moderate to severe chronic obstructive pulmonary disease | Thorax | 2007 | 595 |
| 46 | Pleural procedures and thoracic ultrasound: British Thoracic Society pleural disease guideline 2010 | Thorax | 2010 | 594 |
| 47 | Long-term natural history of chronic obstructive pulmonary disease: severe exacerbations and mortality | Thorax | 2012 | 589 |
| 48 | Relationship between bacterial colonisation and the frequency, character, and severity of COPD exacerbations | Thorax | 2002 | 586 |
| 49 | Chest electrical impedance tomography examination, data analysis, terminology, clinical use and recommendations: consensus statement of the TRanslational EIT developmeNt stuDy group | Thorax | 2017 | 580 |
| 50 | Investigation of a unilateral pleural effusion in adults: British Thoracic Society pleural disease guideline 2010 | Thorax | 2010 | 578 |
