title: Melatonin administration alters semen quality in normal men.
authors.forename: Alexander
authors.initials: A
authors.lastname: Lerchl
mesh_terms: D002940:Circadian Rhythm / Q000502:physiology; D006801:Humans; D007248:Infertility, Male / Q000209:etiology; D008297:Male; D008550:Melatonin / Q000494:pharmacology*; D012661:Semen / Q000187:drug effects*; D013081:Sperm Motility / Q000187:drug effects; D013094:Spermatozoa / Q000187:drug effects
chemical_list: D008550:Melatonin