Cloning of the a chain of human platelet glycoprotein lb: A transmembrane protein with homology to leucine- rich a2- glycoprotein - Lopetz, J A; Chung, D W; Fujikawa, K; Hagen, F S; Papayannopoulou, T; Roth, G J (Proc Natl Acad Sci USA, 1987)