著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) TINGART MJ,Proximal humeral fractures : Regional differences in bone mineral density of the humeral head affect the fixation strength of cancellous screws,J Shoulder Elbow Surg,,,2006,15,,620-628,https://cir.nii.ac.jp/crid/1570291226099499136,