title: Fertility specialists seeking better recipe for in vitro fertilization.
mesh_terms: D004622:Embryo, Mammalian; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D005615:Freezing; D007987:Gonadotropin-Releasing Hormone / Q000031:analogs & derivatives* / Q000627:therapeutic use; D006801:Humans; D007248:Infertility, Male; D016729:Leuprolide; D008297:Male
chemical_list: D007987:Gonadotropin-Releasing Hormone; D016729:Leuprolide