1. 1) Shuji Isefuku, Treatment of Femoral Fracture, Sendai Medical Center Journal, Vol. 6, pp. 10-20, 2016.12 (in Japanese) 伊勢福修司, 大腿骨近位部骨折の治療の現状, 仙台医療センター医学雑誌, Vol. 6, pp. 10-20, 2016.12
2. 2) Director-General for Statistics and Information Policy, Ministry of Health Labour and Welfare: Graphical Review of Japanese Household from Comprehensive Survey of Living Conditions, 2016, pp. 56, 2018.3 (in Japanese) 厚生労働省政策統括官(統計・情報政策担当), 平成30年 グラフでみる世帯の状況 - 国民生活基礎調査(平成28年)の結果から -, pp. 56, 2018.3
3. 3) Hajime Orimo, Yumi Yaegashi, Toshiyuki Onoda, Yasumasa Fukushima, Takayuki Hosoi, Kiyomi Sakata, Hip fracture incidence in Japan: estimates of new patients in 2007 and 20-year trends, Arch Osteoporosis; 4(1-2), pp. 71-77, 2009.12
4. 4) The Japanese Orthopaedic Association, Japanese Society for Fracture Repair, Treatment of femoral neck and trochanteric fractures : Japanese Orthopaedic Association (JOA) clinical practice guideline on the diagnosis, 2011.6 (in Japanese) 日本整形外科学会, 日本骨折治療学会, 大腿骨頚部/転子部骨折診療ガイドライン(改訂第2版), 南江堂, 2011.6
5. 5) Hiroshi Hagino, Naoto Endo, Atsushi Harada, Jun Iwamoto, Tasuku Mashiba, Satoshi Mori, Seiji Ohtori, Akinori Sakai, Junichi Takada, Tetsuji Yamamoto, Survey of hip fractures in Japan: Recent trends in prevalence and treatment, Journal of Orthopaedic Science 22, pp. 909-914, 2017