Semen quality--has it changed during the last decades?
Ulstein
M
M
Kvinnekliniken, Bergen, Norway.
D004967:Estrogens / Q000032:analysis; D006801:Humans; D007248:Infertility, Male / Q000209:etiology; D008297:Male; D012661:Semen / Q000737:chemistry / Q000502:physiology*; D013076:Sperm Count
D004967:Estrogens