1.标题:Confounding in epidemiologic studies: the Adequacy of the control groups as a measure of confounding
作者:P.J. Wickramaratne and T.R. Holford
出版社:Biometrics, 43, 751-765 (1987)
链接:http://links.jstor.org/sici?sici=0006-341X(198712)43%3A4%3C751%3ACIESTA%3E2.0.CO%3B2-3
2.标题:Reader reaction: confounding in epidemiologic studies
作者:P.W. Holland
出版社:Biometrics, 45, 1310-1316 (1989)
链接:无.