Effect of Warfarin on survival in carcinoma of the lung, colon, head and neck, and prostate - Zacharski, L R; Henderson, W G; Rickles, F R; Forman, W B; Cornell, C J; Forcier, R J; Edwards, R L; Headley, E; Kim, S H; O'Donell, J F; O'Dell, R; Tornyos, K; Kwaan, H C (Cancer, 1984)