Title	Publication Date	Language	Citations
Measuring inconsistency in meta-analyses	2003/09/06	English	39,311
Bias in meta-analysis detected by a simple, graphical test	1997/09/13	English	35,746
The Cochrane Collaboration's tool for assessing risk of bias in randomised trials	2011/10/18	English	21,231
Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement	2009/07/21	English	16,512
The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration	2009/07/21	English	12,177
Establishing a standard definition for child overweight and obesity worldwide: international survey	2000/05/06		10,286
Evidence based medicine: what it is and what it isn't	1996/01/13	English	8,175
Association of glycaemia with macrovascular and microvascular complications of type 2 diabetes (UKPDS 35): prospective observational study	2000/08/12		5,764
CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials	2010/03/23	English	5,296
Grading quality of evidence and strength of recommendations	2004/06/17	English	5,253
Tight blood pressure control and risk of macrovascular and microvascular complications in type 2 diabetes: UKPDS 38	1998/09/12	English	4,546
Collaborative meta-analysis of randomised trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke in high risk patients	2002/01/12	English	4,463
Recommendations for examining and interpreting funnel plot asymmetry in meta-analyses of randomised controlled trials	2011/07/22	English	4,270
Multiple imputation for missing data in epidemiological and clinical research: potential and pitfalls	2009/06/29	English	4,167
What's wrong with Bonferroni adjustments	1998/04/18	English	4,129
Qualitative research in health care: Analysing qualitative data	2000/01/08		3,933
CONSORT 2010 Explanation and Elaboration: updated guidelines for reporting parallel group randomised trials	2010/03/23	English	3,660
Qualitative Research: Introducing focus groups	1995/07/29	English	3,489
Hay fever, hygiene, and household size.	1989/11/18	English	3,124
Statistics notes: Cronbach's alpha	1997/02/22	English	3,070
Validating the SF-36 health survey questionnaire: new outcome measure for primary care.	1992/07/18	English	2,992
Human error: models and management	2000/03/18		2,854
Chemotherapy in non-small cell lung cancer: a meta-analysis using updated data on individual patients from 52 randomised clinical trials	1995/10/07	English	2,533
Collaborative overview of randomised trials of antiplatelet therapy Prevention of death, myocardial infarction, and stroke by prolonged antiplatelet therapy in various categories of patients	1994/01/08	English	2,497
Statistics notes: Multiple significance tests: the Bonferroni method	1995/01/21	English	2,450
Meta-analysis of how well measures of bone mineral density predict occurrence of osteoporotic fractures	1996/05/18	English	2,365
Qualitative Research: Consensus methods for medical and health services research	1995/08/05	English	2,261
Analysis of serial measurements in medical research.	1990/01/27	English	2,211
Qualitative research in health care: Assessing quality in qualitative research	2000/01/01		2,191
Framework for design and evaluation of complex interventions to improve health	2000/09/16		2,129