title: The biology of human sex differences.
authors.forename: Joseph B
authors.initials: JB
authors.lastname: Stanford
mesh_terms: D005260:Female; D005298:Fertility / Q000502:physiology*; D006801:Humans; D008297:Male; D010063:Ovum / Q000502:physiology; D012727:Sex Characteristics; D013094:Spermatozoa / Q000502:physiology; D013997:Time Factors