Fatal embryonic bleeding events in mice lacking tissue factor, the cell-associated initiator of blood coagulation - Bugge, TH; Xiao, Q; Kombrinck, KW; Flick, MJ; Holmbäck, K; Danton, MJS; Colbert, MC; Witte, DP; Fujikawa, K; Davie, EW; Degen, JL (Proc Natl Acad Sci USA, 1996)