Regional localization on the human X chromosome and polymorphism of the coagulation factor IX gene (hemophilia B locus) - Camerino, G; Grzeschik, KH; Jaye, M; de La Salle, H; Tolstoshev, P; Lecocq, JP; Heilig, R; Mandel, JL (Proc Natl Acad Sci USA, 1984)