1. Insulin-Like Growth Factor I and Interleukin-6 Contribute Synergistically to Disability and Mortality in Older Women Cappola, Anne R.; Xue, Qian-Li; Ferrucci, Luigi; Guralnik, Jack M.; Volpato, Stefano; Fried, Linda P. 2003 Articles Aging--Endocrine aspectsAging--Physiological aspectsOlder womenEndocrinologyAgingEpidemiology