Onder G, Liperoti R, Fialova D, Topinkova E, Tosato M, Danese P, Gallo PFolino, Carpenter I, Finne-Soveri H, Gindin J et al..  2012.  Polypharmacy in Nursing Home in Europe: Results From the SHELTER Study. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences.