Carpenter G.I, Hirdes J.P, Ribbe M.W, Ikegami N., Challis D., Steel K., Bernabei R., Fries B..  1999.  Targeting and quality of nursing home care. A five-nation study. Aging-Clinical & Experimental Research. 11(2):83-9.

Gifford D.R, Lapane K.L, Gambassi G., Landi F., Mor V., Bernabei R..  1999.  Tacrine use in nursing homes: implications for prescribing new cholinesterase inhibitors. SAGE Study Group. Systematic Assessment of Geriatric Drug Use via Epidemiology.. Neurology. 52(2):238-44.

Gifford D.R, Lapane K.L, Gambassi G., Landi F., Mor V., Bernabei R..  1999.  Tacrine use in nursing homes: Implications for prescribing new cholinesterase inhibitors. Neurology. 52(2):238-244.

Lukas A., Mayer B., Fialova D., Topinkova E., Gindin J., Onder G., Bernabei R., Nikolaus T., Denkinger M.D.  2013.  Treatment of Pain in European Nursing Homes: Results from the Services and Health for Elderly in Long TERm Care (SHELTER) Study. Journal of the American Medical Directors Association. 14(11):821-831.