Rao, Raj D. (ed) Orthopaedic knowledge update : Volume 4 : Spine - 4th ed. - Rosemont, IL : American Academy of Orthopaedic Surgeons 2012 - xix, 621 p. : ill. ; 28 cm. ISBN: 9780892037377 Subjects--Topical Terms: Musculoskeletal SystemSpine