title: Severe occipital pain caused by periodontoid calcifications: crowned dens syndrome.
authors: Department of Neurology, Hiroshima Prefectural Hospital, Japan. yyamazak@hiroshima-u.ac.jp
authors: Yu
authors: Y
authors: Yamazaki
authors: Yuhei
authors: Y
authors: Kanaya
authors: Hiromitsu
authors: H
authors: Naka
authors: Hiroshi
authors: H
authors: Tokinobu
mesh_terms: D000368:Aged; D002805:Chondrocalcinosis / Q000150:complications* / Q000473:pathology; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D009809:Odontoid Process / Q000473:pathology*; D013577:Syndrome