title: Experience with in vitro sperm penetration testing in infertile and fertile couples.
mesh_terms: D002582:Cervix Mucus; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007247:Infertility, Female / Q000209:etiology*; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D013081:Sperm Motility