In vitro fertilization and the male factor.
D000818:Animals; D006224:Cricetinae; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007248:Infertility, Male / Q000175:diagnosis*; D008297:Male; D012661:Semen / Q000503:physiopathology; D013076:Sperm Count; D013081:Sperm Motility; D013094:Spermatozoa / Q000503:physiopathology