Hult, L. (1954) “Cervical, Dorsal and Lumbar Spinal Syndromes: Ada Orthopaed. Scand. Suppl. no. XVII, 102 pages, Ejnar Mnnksgaard, Copenhagen 1954”, Acta Orthopaedica, 24(1-4), pp. 174–175. doi: 10.3109/17453675408988560.