Comparison of 125I fibrinogen count scanning with phlebography for detection of venous thrombi following elective hip surgery - Harris, W. H; Salzman, E. W; Athanasoulis, C; Waltman, A; Baum, S; Desanctis, R. W; Potsaid, M. S; Sise, H (New England Journal of Medicine, 1975)