[1] Department of Radiology,
[2] The Royal National Orthopaedic Hospital Trust,undefined
[3] Brockley Hill,undefined
[4] Stanmore,undefined
[5] Middlesex HA7 4LP,undefined
[6] UK,undefined
[7] Department of Morbid Anatomy,undefined
[8] The Royal National Orthopaedic Hospital Trust,undefined
[9] Brockley Hill,undefined
[10] Stanmore,undefined
[11] Middlesex HA7 4LP,undefined
[12] UK,undefined
[13] Department of Spinal Surgery,undefined
[14] The Royal National Orthopaedic Hospital Trust,undefined
[15] Brockley Hill,undefined
[16] Stanmore,undefined
[17] Middlesex HA7 4LP,undefined
[18] UK,undefined