title: Plasma testosterone, estradiol, and semen analysis in male homosexuals.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004958:Estradiol / Q000097:blood*; D005632:Fructose / Q000032:analysis; D006716:Homosexuality / Q000097:blood / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012661:Semen / Q000032:analysis*; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology / Q000502:physiology; D013739:Testosterone / Q000097:blood*
chemical_list: D005632:Fructose; D013739:Testosterone; D004958:Estradiol