Double insurance redux.
Erlick A C
EA
Pereira
Tom A D
TA
Cadoux-Hudson
D001268:Atlanto-Axial Joint / Q000601:surgery*; D002574:Cervical Vertebrae / Q000601:surgery; D006801:Humans; D016268:Internal Fixators / Q000592:standards / Q000639:trends*; D013123:Spinal Fusion / Q000379:methods*