Ettinger WH, Verdery RB, Wahl PW, Fried LP. High density lipoprotein cholesterol subfractions in older people. J Gerontol. 1994  ;49(3):M116-22.

Ettinger WH, Fried LP, Harris T, Shemanski L, Schulz R, Robbins J. Self-reported causes of physical disability in older people: the Cardiovascular Health Study. CHS Collaborative Research Group. J Am Geriatr Soc. 1994  ;42(10):1035-44.