TY - BOOK AU - Clark Charles R. TI - Cervical spine SN - 0781735769 U1 - WE725 PY - 2005/// CY - Philadelphia PB - Lippincott williams and wilkins KW - Spinal Diseases KW - Cervical Vertebrae N1 - Cervical spine research society editorial committee N2 - Cervical Vertebrae, Spinal Diseases ER -