TY - JOUR A1 - Fortin, M. A1 - Stewart, M. A1 - Poitras, M.E. A1 - Almirall, J. A1 - Maddocks, H. T1 - A systematic review of prevalence studies on multimorbidity: Toward a more uniform methodology Y1 - 2012 DO - 10.1370/afm.1337 VL - 10 IS - 2 ER -