D. Brotman, E. Walker, M. Lauer, and R. O'Brien. Archives of internal medicine, 165 (2):
138-45(January 2005)3841<m:linebreak></m:linebreak>Mesures d'associació.
M. Brookhart, R. Wyss, J. Layton, and T. Stürmer. Circulation. Cardiovascular quality and outcomes, 6 (5):
604-11(September 2013)Propensity score; Introductori; CV; SAS.