1. Fracture patterns;Buhr;Lancet,1959
2. The increasing incidence of fractures of the proximal femur: An orthopaedic epidemic;Wallace;Lancet,1983
3. Incidence of fractures in persons over 35 years of age—a report to the MRC working party on fractures in the elderly;Knowelden;Br J Prev Soc Med,1964
4. Statistical aspects of the analysis of data from retrospective studies of disease;Mantel;J Natl Cancer Inst,1959
5. Regional survey of femoral neck fractures;Gallannaugh;Br Med J,1976