The relationship between sperm concentration and fertilization in vitro of mouse eggs.
D000818:Animals; D005260:Female; D005306:Fertilization; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa