Tinetti, M.E.; Williams, T. Frankin; Mayewski, R. (1986). "Fall risk index for elderly patients based on number of chronic disabilities". American Journal of Medicine. 80 (3): 429–434. doi:10.1016/0002-9343(86)90717-5. PMID3953620.
Tinetti, M.E.; Williams, T. Frankin; Mayewski, R. (1986). "Fall risk index for elderly patients based on number of chronic disabilities". American Journal of Medicine. 80 (3): 429–434. doi:10.1016/0002-9343(86)90717-5. PMID3953620.