Bibliografia

Cyriax J.: Textbook of Orthopaedic Medicine . Voll. 1 e 2, Baillière Tindall London, 1982.

Eyring E.J.: Biochemistry of the intervertebral disc . Clin. Orthop. 67, 16, 1969.

Laevitt S.S.: Patterns in industrial back injury . Ind. Med. Surg. 40, 8, 1972.

McKenzie R.: Treat your own back . Spinal Publication Ltd. Wellington, 1983.