Bos J.T, Frijters D.H, Wagner C., Carpenter G.I, Finne-Soveri H., Topinkova E., Garms-Homolova V., Henrard J.C, Jonsson P.V, Sorbye L. et al..  2007.  Variations in quality of Home Care between sites across Europe, as measured by Home Care Quality Indicators. Aging-Clinical & Experimental Research. 19(4):323-9.

Gambassi G., Landi F., Peng L., Brostrup-Jensen C., Calore K., Hirdes J., Lipsitz L., Mor V., Bernabei R..  1998.  Validity of diagnostic and drug data in standardized nursing home resident assessments: potential for geriatric pharmacoepidemiology. SAGE Study Group. Systematic Assessment of Geriatric drug use via Epidemiology. Medical Care. 36(2):167-79.