Europe/epidemiology
Landi, F., Onder, G., Carpenter, I., Cesari, M., Soldato, M., Bernabei, R. 2007. Physical activity prevented functional decline among frail community-living elderly subjects in an international observational study. J Clin Epidemiol. 60 (5) 518-24.
Topinková, E., Sgadari, A., Haas, T. 1997. [Urinary incontinence in patients in long-term institutional care. Results of an international study in 8 countries]. Cas Lek Cesk. 136 (18) 555-8.