Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) JACOBS RR,Internal fixation of intertrochanteric hip fractures : a clinical and biomechanical study,Clin Orthop.,,,1980,146,,62-70,https://cir.nii.ac.jp/crid/1573387449993248640,https://doi.org/10.1097/00003086-198001000-00009