Apoptosis in human granulosa cells after induction of ovulation in women participating in an intracytoplasmic sperm injection program. - Clavero,A.; Castilla,J.A.; Nunez,A.I.; Garcia-Pena,M.L.; Maldonado,V.; Fontes,J.; Mendoza,N.; Martinez,L. (Eur J Obstet Gynecol Reprod Biol, 2003)