title: Hoarseness due to subcutaneous emphysema and pneumomediastinum.
authors: Gen
authors: G
authors: Ohara
authors: Katsunori
authors: K
authors: Kagohashi
authors: Yasunori
authors: Y
authors: Aoyagi
authors: Kensuke
authors: K
authors: Nakazawa
authors: Koichi
authors: K
authors: Kurishima
authors: Hiroaki
authors: H
authors: Satoh
mesh_terms: D006371:Helium / Q000009:adverse effects*; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008478:Mediastinal Emphysema / Q000209:etiology*; D010988:Play and Playthings
chemical_list: D006371:Helium