Open AccessThe need for controls in case control studies
Author(s) -
Sunil Kumar Raina
Publication year - 2014
Publication title -
north american journal of medical sciences
Language(s) - English
Resource type - Journals
eISSN - 2250-1541
pISSN - 1947-2714
DOI - 10.4103/1947-2714.131252
Subject(s) - medicine , diabetic retinopathy , diabetes mellitus , retinopathy , quartile , odds ratio , periodontal disease , disease , dentistry , endocrinology , confidence interval