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Schön, Corinna Ariane; Ketterer, Thomas (2007). Asphyxial suicide by inhalation of helium inside a plastic bag. American journal of forensic medicine & pathology, 28(4), pp. 364-367. Hagerstown, Md.: Wolters Kluwer Lippincott Williams & Wilkins 10.1097/PAF.0b013e31815b4c69