@jepcastel

A didactic device for teaching epidemiology students how to anticipate the effect of a third factor on an exposure-outcome relation.

, , and . American journal of epidemiology, 150 (2): 221 (July 1999)4318<m:linebreak></m:linebreak>LR: 20051117; PUBM: Print; JID: 7910653; 0 (Contraceptives, Oral); ppublish;<m:linebreak></m:linebreak>Formació.

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