Henschke N, Maher CG, Refshauge KM, et al. «Prevalence of and screening for serious spinal pathology in patients presenting to primary care settings with acute low back pain». Arthritis Rheum., 60, 10, octubre 2009, pàg. 3072–80. DOI: 10.1002/art.24853. PMID: 19790051.
Henschke N, Maher CG, Refshauge KM, et al. «Prevalence of and screening for serious spinal pathology in patients presenting to primary care settings with acute low back pain». Arthritis Rheum., 60, 10, octubre 2009, pàg. 3072–80. DOI: 10.1002/art.24853. PMID: 19790051.