F. Lobo, S. Wagner, C. Gross, and J. Schommer. Research in social & administrative pharmacy : RSAP, 2 (1):
143-51(March 2006)6524<m:linebreak></m:linebreak>LR: 20071115; JID: 101231974; ppublish;<m:linebreak></m:linebreak>Propensity score; Introductori.
V. Prasad, and A. Jena. JAMA : the journal of the American Medical Association, 309 (3):
241-2(January 2013)Mesures d'associació; Observacionals; Controls negatius.