1. Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990–2013: a systematic analysis for the Global Burden of Disease Study;Lancet,2013
2. The global burden of low back pain: estimates from the Global Burden of Disease 2010 study;Ann Rheum Dis,2014
3. Low back pain;J Orthop Sports Phys Ther,2012
4. Epidemiological features of chronic low-back pain;Lancet,1999
5. Acute low back pain in industry: a controlled prospective study with special reference to therapy and confounding factors;Acta Orthop Scand,1977