Media type: E-Article Title: Confounding in Epidemiologic Studies: The Adequacy of the Control Group as a Measure of Confounding Contributor: Wickramaratne, Priya J.; Holford, Theodore R. imprint: JSTOR, 1987 Published in: Biometrics Language: Not determined DOI: 10.2307/2531530 ISSN: 0006-341X Origination: Footnote: