title: Selenium and the north south gradient in cot death.
authors.forename: J W
authors.initials: JW
authors.lastname: Logan
mesh_terms: D002980:Climate; D006801:Humans; D007223:Infant; D009520:New Zealand; D012643:Selenium / Q000172:deficiency*; D013398:Sudden Infant Death / Q000453:epidemiology*
chemical_list: D012643:Selenium