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Cruz EB, Fernandes R, Carnide F, Vieira A, Moniz S, Nunes F.

Cruz EB, Fernandes R, Carnide F, Vieira A, Moniz S, Nunes F.  Cross-cultural adaptation and validation of the Quebec Back Pain Disability Scale to European Portuguese language. Spine (Phila Pa 1976). 2013; 38(23):E1491-7. doi: 10.1097/BRS.0b013e3182a439cc.