Related by context. Frequent words. (Click for all words.) 76 peer reviewed scientific 72 peer reviewed journal 71 peer reviewed journals 69 peer reviewed literature 65 scientific journals 63 scientific 63 peer reviewed publication 62 peer reviewed papers 62 peer reviewed publications 57 journals 54 meta analyzes 54 abstracts 53 PubMed 52 journal 52 scholarly journals 52 scientifically 51 randomized controlled trials 51 scientifically valid 51 Cochrane Collaboration 50 Cochrane Library 50 epidemiological studies 49 JAMA 49 epidemiologic studies 49 NEJM 49 randomized clinical trials 49 meta analysis 49 RCTs 49 peer reviewers 49 Molecular Cancer 48 Abstracts 48 PLoS ONE 48 Lancet 48 PLoS 48 Wiley Blackwell 47 journal Molecular 47 BioMed Central 47 research 47 Scientific Advisory Committee 47 CrossRef 47 Nature Geoscience 47 observational studies 47 journal Lancet 47 BMJ 47 journal Annals 46 monographs 46 Lancet Oncology 46 #:#-# [035] 46 scientists 46 empirical 46 Clinical Infectious Diseases 45 #:#-# [033] 45 studies 45 scientific journal Nature 45 #:#-# [029] 45 PLoS Medicine 45 Endocrine Society 45 randomized trials 45 Annals 45 journal Nature Genetics 45 journal Physical 45 scientific rigor 44 access journal PLoS 44 study 44 Review Letters 44 PLoS Biology 44 journal PLoS 44 journal Science 44 scholarly articles 44 Medicine IOM 44 published 44 NIH 44 journal Nature 44 journal Cell 44 Clinical Practice 44 chromium picolinate 43 PNAS 43 Nature Biotechnology 43 #:#-# [006] 43 & Rheumatism 43 PLoS One 43 journal Sleep 43 ASCO 43 monograph 43 journal Geophysical Research 43 journal Archives 43 Clinical Endocrinology 43 causal link 43 USPSTF 43 CHEST 43 National Institutes 43 AACR 43 #:#-# [028] 43 National Academies 42 findings 42 vitro studies 42 clinically relevant 42 scholarly 42 American Thoracic Society 42 journal Biology Letters 42 Nature Nanotechnology 42 Antimicrobial Agents