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Hagelberg, Mårten, Alexandra Thune, Ferid Krupic, Björn Salomonsson, a Olof Sköldenberg. "Functional Outcome After Mason II–III Radial Head and Neck Fractures: Study Protocol for a Systematic Review in Accordance With the PRISMA Statement." BMJ Open 2017.

Hagelberg, Mårten, et al. "Functional Outcome After Mason II–III Radial Head and Neck Fractures: Study Protocol for a Systematic Review in Accordance With the PRISMA Statement." BMJ Open 2017.