Launonen, Antti P, Vesa Lepola, Tapio Flinkkilä, Minna Laitinen, Mika Paavola, and Antti Malmivaara. 2015. “Treatment of Proximal Humerus Fractures in the Elderly”. Acta Orthopaedica 86 (3):280-85. https://doi.org/10.3109/17453674.2014.999299.