title: Reproductive biology. Fertilization without sperm.
authors.forename: R J
authors.initials: RJ
authors.lastname: Aitken
authors.forename: D S
authors.initials: DS
authors.lastname: Irvine
mesh_terms: D000818:Animals; D005260:Female; D005306:Fertilization / Q000502:physiology*; D005307:Fertilization in Vitro; D006801:Humans; D007248:Infertility, Male; D007315:Insemination, Artificial; D008297:Male; D009866:Oogenesis; D011247:Pregnancy; D013087:Spermatids / Q000502:physiology; D013091:Spermatogenesis; D013094:Spermatozoa / Q000502:physiology*