Spanish National Hip Fracture Registry (RNFC): analysis of its first annual report and international comparison with other established registries by Ojeda-Thies, C, Sáez-López, P, Currie, CT, Tarazona-Santalbina, FJ, Alarcón, T, Muñoz-Pascual, A, Pareja, T, Gómez-Campelo, P, Montero-Fernández, N, Mora-Fernández, J, Larrainzar-Garijo, R, Gil-Garay, E, Etxebarría-Foronda, I, Caeiro, JR, Díez-Pérez, A, Alhambra, D, Navarro-Castellanos, L, Otero-Puime, A, González-Montalvo, JI