Björkenheim, J.-M., Pajarinen, J., & Savolainen, V. (2004). Internal fixation of proximal humeral fractures with a locking compression plateA retrospective evaluation of 72 patients followed for a minimum of 1 year. Acta Orthopaedica, 75(6), 741–745. https://doi.org/10.1080/00016470410004120