title: [Homosexuality as a biological phenomenon].
authors.affiliation: Ustav pro péci o matku a dítĕ, Praha, Podolí.
authors.forename: J
authors.initials: J
authors.lastname: Presl
mesh_terms: D000818:Animals; D006716:Homosexuality; D006801:Humans; D007031:Hypothalamus / Q000033:anatomy & histology*; D008297:Male; D012727:Sex Characteristics; D012725:Sexual Behavior