Gambassi G., Forman D.E, Lapane K.L, Mor V., Sgadari A., Lipsitz L.A, Bernabei R..  2000.  Management of heart failure among very old persons living in long-term care: has the voice of trials spread? The SAGE Study Group Am Heart J. 139(1 Pt 1):85-93.

Morris J.N, Fries B.E, Mehr D.R, Hawes C., Phillips C., Mor V., Lipsitz L.A.  1994.  MDS Cognitive Performance Scale. Journal of Gerontology. 49(4):M174-82.