Insulin-like growth factor-1 and interleukin 6 predict sarcopenia in very old community-living men and women: the Framingham Heart Study. - Payette,H.; Roubenoff,R.; Jacques,P.F.; Dinarello,C.A.; Wilson,P.W.; Abad,L.W.; Harris,T. (J Am Geriatr Soc, 2003)