[1] Assoc Families & Their Doctors, Una Mano Vita, Catania, Italy
[2] Univ Diego Portales, Nucleo UDP Fdn Ineco Neurosci NUFIN, Santiago, Chile
[3] Univ Nebraska, Dept Gerontol, Omaha, NE 68182 USA
[4] Imperial Coll London, Dept Med, Ctr Mental Hlth, London, England
[5] Rehabil Inst Chicago, Brain Injury Res Cognit Neurosci Lab, Chicago, IL 60611 USA