title: Treatment of oligospermia by freezing and concentrating semen.
mesh_terms: D005260:Female; D005306:Fertilization; D005615:Freezing; D006801:Humans; D007248:Infertility, Male / Q000628:therapy*; D007315:Insemination, Artificial; D008297:Male; D011247:Pregnancy; D012661:Semen