Falls explain between-center differences in the incidence of limb fracture across Europe. by Roy, D, Pye, SR, Lunt, M, O'Neill, T, Todd, C, Raspe, H, Reeve, J, Silman, A, Weber, K, Dequeker, J, Jajic, I, Stepan, J, Delmas, P, Marchand, F, Reisinger, W, Banzer, D, Felsenberg, D, Janott, J, Kragl, G, Schiedt-Nave, C, Felsch, B, Raspe, H, Matthis, C, Lyritis, G, Poor, G