Design of a long-acting follitropin agonist by fusing the C-terminal sequence of the chorionic gonadotropin beta subunit to the follitropin beta subunit - Fares,F.A.; Suganuma,N.; Nishimori,K.; LaPolt,P.S.; Hsueh,A.J.; Boime,I. (Proc Natl Acad Sci USA, 1992)