Cloning of the alpha chain of human platelet glycoprotein Ib: a trans-membrane protein with homology to leucine-rich α2-glycoprotein. - Lopez, JA; Chung, DW; Fujikawa, K; Hagen, FS; Papayannopoulou, T; Roth, GJ (Proc Natl Acad Sci USA, 1987)