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Sundstrup, Emil, Markus D. Jakobsen, Christoffer H. Andersen, Kenneth Jay, Roger Persson, Per Aagaard, a Lars L. Andersen. Participatory Ergonomic Intervention Versus Strength Training On Chronic Pain and Work Disability in Slaughterhouse Workers: Study Protocol for a Single-blind, Randomized Controlled Trial. BioMed Central, 2013.

Sundstrup, Emil, et al. Participatory Ergonomic Intervention Versus Strength Training On Chronic Pain and Work Disability in Slaughterhouse Workers: Study Protocol for a Single-blind, Randomized Controlled Trial. BioMed Central, 2013.