In vivo hepatic gene therapy complete albeit transient correction of factor IX deficiency in hemophilia B dogs - Kay, M A; Landen, C N; Rothenberg, S R; Taylor, L A; Leland, F; Wiehle, S; Fang, B; Bellinger, D; Finegold, M; Thompson, A R (Proc Natl Acad Sci USA, 1994)