title: Impossible melatonin data.
authors.forename: Alexander
authors.initials: A
authors.lastname: Lerchl
mesh_terms: D005298:Fertility; D006801:Humans; D007248:Infertility, Male / Q000097:blood / Q000378:metabolism; D008297:Male; D008550:Melatonin / Q000097:blood / Q000378:metabolism*; D012661:Semen / Q000378:metabolism*
chemical_list: D008550:Melatonin