Open AccessCommentary: Assessing the quality of observational studies or a lesson from Mars
Author(s) -
Erik von Elm
Publication year - 2007
Publication title -
international journal of epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.406
H-Index - 208
eISSN - 1464-3685
pISSN - 0300-5771
DOI - 10.1093/ije/dym112
Subject(s) - observational study , mars exploration program , quality (philosophy) , medicine , psychology , astrobiology , epistemology , physics , philosophy
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