Related by context. Frequent words. (Click for all words.) 69 peer reviewed 62 peer reviewed scientific 60 scientific journals 59 peer reviewed publications 57 peer reviewed journals 57 scientific 53 peer reviewed papers 52 scientifically valid 52 meta analyzes 50 epidemiologic studies 50 journals 50 PubMed 49 Systematic Reviews 49 peer reviewed publication 48 peer reviewed journal 48 Cochrane Collaboration 48 Cochrane Database 48 scientifically rigorous 47 observational studies 47 scientifically 46 meta analysis 46 abstracts 46 empirical 46 Molecular Cancer 46 randomized controlled trials 46 randomized trials 46 USPSTF 45 pseudoscience 45 randomized clinical trials 45 NEJM 45 pseudo scientific 45 monographs 45 AASLD 45 scientific rigor 44 comparative effectiveness 44 NCCAM 44 Cochrane Library 44 #:#-# [033] 44 scholarly journals 44 RCTs 44 epidemiological studies 44 Scientific Advisory Committee 44 ASCO 44 clinically relevant 43 scholarly 43 Digestive Disease Week 43 ePRO 43 Lomborg 43 American Gastroenterological Association 43 climatologists 43 UpToDate 43 NCCN 43 peer reviewers 43 empirical evidence 43 FDA reviewers 42 PLoS 42 Endocrine Society 42 CrossRef Web 42 ScienceDirect 42 anthropogenic climate 42 #:#-# [035] 42 anthropogenic global warming 42 AHRQ 42 scholarly journal 41 ASCO Annual Meeting 41 Pielke 41 MEDLINE 41 antioxidant supplements 41 Quality AHRQ 41 AHPA 41 Elsevier 41 ACSH 41 Neuropsychopharmacology 40 postmarketing 40 reviewers 40 CrossRef 40 Medicine IOM 40 ESMO 40 scientists 40 causal link 40 Medicine NEJM 40 #:#-# [029] 40 American Thoracic Society 40 denialists 40 journal 40 scientific discoveries 40 scholarly articles 40 Clinical Practice 40 journal PLoS Medicine 40 CDRH 40 placebo controlled trials 40 ABPI 40 hematologists 40 oncologists 40 bioethicists 40 AGW 40 CDER 40 methodological 40 APhA 39 fibrates 39 Pharmacotherapy