title: [Four cases of fatal poisoning by hydrogen sulfide. A study of greenish discoloration of the skin and formation of sulfhemoglobin].
mesh_terms: D000062:Accidents, Occupational; D000293:Adolescent; D000328:Adult; D005554:Forensic Medicine; D006801:Humans; D006862:Hydrogen Sulfide / Q000506:poisoning*; D008297:Male; D008875:Middle Aged; D012867:Skin / Q000473:pathology*; D012880:Skin Pigmentation / Q000187:drug effects*; D013435:Sulfhemoglobin / Q000032:analysis*
chemical_list: D013435:Sulfhemoglobin; D006862:Hydrogen Sulfide