Fatal embryonic bleeding events in mice lacking tissue factor, the cell-associated initiator of blood coagulation - Bugge, T H; Xiao, Q; Kombrinck, K W; Flick, M J; Holmback, K; Danton, M JS; Colbert, M C; Witte, D P; Fujikawa, K; Davie, E N; Degen, J L (Proc. Natl. Acad Sci USA, 1996)