Joint involvement in patients with knee and hip OA scheduled for surgery: multi-joint oa, the rule not the exception?. (April 2017) - Perruccio, A.V.; Yip, C.; Power, J.D.; Gandhi, R.; Mahomed, N.N.; Davey, J.R.; Syed, K.; Veillette, C.; Rampersaud, Y.R.; Badley, E.M.