INS and Brugada syndrome: Finally, the following entities had one study each: sudden unexplained nocturnal death syndrome [46], pediatric subdural hemosiderin deposits [56], iron in fetal and infant leptomeninges [80], DNA identification based on brain tissue swab [76], zinc in brain tissue [90], intracranial aneurysms and dissections [101], age estimation [103], electrocution [124], insulin homicide [131], fire fatalities [137], phosphine poisoning [93], and carbon monoxide poisoning [142].