title: [Chemical mass poisoning caused by sodium nitrite].
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D008706:Methemoglobin / Q000032:analysis; D008875:Middle Aged; D009573:Nitrites / Q000506:poisoning*; D011041:Poisoning / Q000097:blood; D014877:Water Pollution, Chemical; D014881:Water Supply
chemical_list: D009573:Nitrites; D008706:Methemoglobin
vernacular_title: Masowe chemiczne zatrucie pokarmowe azotynem sodu