Hachisu Takuya, Omura Kazuhiro, Otori Nobuyoshi, Tanaka Yasuhiro
Department of Otorhinolaryngology, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan.
Department of Otohinolaryngology, The Jikei University School of Medicine, Tokyo, Japan.
BMJ Case Rep. 2017 Nov 8;2017:bcr-2017-222288. doi: 10.1136/bcr-2017-222288.