Risk factors for fragility fractures in middle age: a prospective population-based study of 33 000 men and women : konference: IOF World Congress on Osteoporosis, Toronto, Kanada, 2.6.-6.6.2006 [abstrakt] - Holmberg, A. H; Akesson, K; Johnell, O; Nilsson, P. M; Nilsson, J; Berglund, G (Pohybové ústrojí. Pokroky ve výzkumu, diagnostice a terapii, 2006)