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Azagra, R., F. López-Expósito, J. Martin-Sánchez, A. Aguyé, N. Moreno, C. Cooper, A. Díez-Pérez, and E. Dennison. Changing Trends in the Epidemiology of Hip Fracture in Spain. Springer-Verlag London Ltd, 2014.

Azagra, R., et al. Changing Trends in the Epidemiology of Hip Fracture in Spain. Springer-Verlag London Ltd, 2014.