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Sellers TA, Sprafka JM, Gapstur SM, Rich SS, Potter JD, Ross JA, McGovern PG, Nelson CL, Folsom AR.Sellers TA, et al. Among authors: gapstur sm.Epidemiology. 1994 Jan;5(1):102-8. doi: 10.1097/00001648-199401000-00015.Epidemiology. 1994.PMID: 8117767
Sellers TA, Gapstur SM, Potter JD, Kushi LH, Bostick RM, Folsom AR.Sellers TA, et al. Among authors: gapstur sm.Am J Epidemiol. 1993 Nov 15;138(10):799-803. doi: 10.1093/oxfordjournals.aje.a116783.Am J Epidemiol. 1993.PMID: 8237968