3Keijzers GB1, Giannakopoulos GF, Del Mar C, Bakker FC, Geeraedts LM Jr.The effect of tertiary surveys on missed injuries in trauma: a systematic review.Scand J Trauma Resusc Emerg Med. 2011,20:1-9.
4Roberts SE, Goldacre MJ.Time trends and demography of mortality after fractures neck of femur in an English population 1968-98:database study [J] .BMJ,2003,327:771-775.
5Van den Bekerom MP, Sierevelt IN, Bonke H, ILaaymakers EL.The natural history of the hemiarthroplasty for displaced intracapsular femoral neck fractures.Acta Orthop.2013,84(6):555-560.
6Bombaci H, Erdogan O, -etinkaya F, Kuyumcu M, Kaya E, Bombaci E.Preoperative indicators affecting postoperative mortality in elderly patients with hip fractures.Acta Orthop Traumatol Turc. 2012,46(6):425-429.