TY - JOUR T1 - Crowned dens syndrome JF - Canadian Medical Association Journal JO - CMAJ SP - 293 LP - 293 DO - 10.1503/cmaj.122147 VL - 186 IS - 4 AU - Akira Kuriyama Y1 - 2014/03/04 UR - http://www.cmaj.ca/content/186/4/293.abstract ER -