About GURALNIK J M
About National Inst. Aging, Md.
About FERRUCCI L
About National Inst. Research and Care of the Elderly (INRCA), Florence, ITA
About SIMONSICK E M
About National Inst. Aging, Md.
About SALIVE M E
About National Inst. Aging, Md.
About WALLACE R B
About Univ. Iowa, Iowa City
About New England Journal of Medicine