Brorson, S., Olsen, B. S., Frich, L. H., Jensen, S. L., Johannsen, H. V., Sørensen, A. K., & Hrobjartsson, A. (2009). Effect of osteosynthesis, primary hemiarthroplasty, and non-surgical management for displaced four-part fractures of the proximal humerus in elderly: A multi-centre, randomised clinical trial. BioMed Central.

Brorson, Stig, Bo Sanderhoff Olsen, Lars Henrik Frich, Steen Lund Jensen, Hans Viggo Johannsen, Anne Kathrine Sørensen, and Asbjørn Hrobjartsson. Effect of Osteosynthesis, Primary Hemiarthroplasty, and Non-surgical Management for Displaced Four-part Fractures of the Proximal Humerus in Elderly: A Multi-centre, Randomised Clinical Trial. BioMed Central, 2009.

Brorson, Stig, et al. Effect of Osteosynthesis, Primary Hemiarthroplasty, and Non-surgical Management for Displaced Four-part Fractures of the Proximal Humerus in Elderly: A Multi-centre, Randomised Clinical Trial. BioMed Central, 2009.