The postcoital tests.
D002582:Cervix Mucus; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007247:Infertility, Female / Q000175:diagnosis*; D007248:Infertility, Male / Q000175:diagnosis*; D008297:Male; D010060:Ovulation; D012661:Semen / Q000032:analysis; D013075:Sperm Capacitation; D013081:Sperm Motility; D013094:Spermatozoa; D013997:Time Factors