O’Donnell MJ, McQueen M, Sniderman A, Pare G, Wang X, Hankey GJ, Rangarajan S, Chin SL, Rao-Melacini P, Ferguson J, Xavier D, Lisheng L, Zhang H, Pais P, Lopez-Jaramillo P, Damasceno A, Langhorne P, Rosengren A, Dans AL, Elsayed A, Avezum A, Mondo C, Judge C, Diener HC, Ryglewicz D, Czlonkowska A, Pogosova N, Weimar C, Iqbal R, Diaz R, Yusoff K, Yusufali A, Oguz A, Penaherrera E, Lanas F, Ogah OS, Ogunniyi A, Iversen HK, Malaga G, Rumboldt Z, Oveisgharan S, Al Hussain F, Nilanont Y, Yusuf S, on Behalf of the INTERSTROKE Investigators