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Hubbard AE, Ahern J, Fleischer NL, Van der Laan M, Lippman SA, Jewell N, Bruckner T, Satariano WA.Hubbard AE, et al.Epidemiology. 2010 Jul;21(4):467-74. doi: 10.1097/EDE.0b013e3181caeb90.Epidemiology. 2010.PMID: 20220526