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Journal of Clinical Epidemiology > 2014 > 67 > 10 > 1157-1162
Journal of Adolescent Health > 2013 > 53 > 2 > 202-208.e2
Journal of Clinical Epidemiology > 2014 > 67 > 10 > 1157-1162
Journal of Adolescent Health > 2013 > 53 > 2 > 202-208.e2