Molecular cloning of fibroblast activation protein alpha, a member of the serine protease family selectively expressed in stromal fibroblasts of epithelial cancers. - Scanlan,MJ.; Raj,BK.; Calvo,B.; Garin-Chesa,P.; Sanz-Moncasi,MP.; Healey,JH.; Old,LJ.; Rettig,WJ. (Proc Natl Acad Sci USA, 1994)