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Ghanei I, Rosengren BE, Hasserius R, Nilsson J, Mellström D, Ohlsson C, Ljunggren Ö, Karlsson MK. The prevalence and severity of low back pain and associated symptoms in 3,009 old men. European Spine Journal. 2013 Dec 27;23(4):814–20. doi: 10.1007/s00586-013-3139-0. |