Schumpf L.F, Theill N., Scheiner D.A, Fink D., Riese F., Betschart C..  2017.  Urinary incontinence and its association with functional physical and cognitive health among female nursing home residents in Switzerland. BMC geriatrics. 17(1):17.

Ribbe M.W, Ljunggren G., Steel K., Topinkova E., Hawes C., Ikegami N., Henrard J.C, Jonnson P.V.  1997.  Nursing homes in 10 nations: A comparison between countries and settings. Age & Ageing. 26(SUPPL. 2):3-12.

Ljunggren G., Phillips C.D, Sgadari A..  1997.  Comparisons of restraint use in nursing homes in eight countries. Age & Ageing. 26(SUPPL. 2):43-47.