The use of long-acting gonadotropin-releasing hormone agonist (GnRH-a; decapeptyl) and gonadotropins versus short-acting GnRH-a (buserelin) and gonadotropins before and during ovarian stimulation for in vitro fertilization (IVF) - Gonen,Y.; Dirnfeld,M.; Goldman,S.; Koifman,M.; Abramovici,H. (J In Vitro Fert Embryo Transf, 1991)