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Vitaliano PP, Young HM, Russo J, Romano J, Magana-Amato A.Vitaliano PP, et al. Among authors: romano j.J Gerontol. 1993 Jul;48(4):P202-9. doi: 10.1093/geronj/48.4.p202.J Gerontol. 1993.PMID: 8315237