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Value in Health > 2015 > 18 > 2 > 206-216
Journal of Community Health > 2012 > 37 > 1 > 15-24
Journal of Clinical Epidemiology > 2003 > 56 > 6 > 520-529
Value in Health > 2015 > 18 > 2 > 206-216
Journal of Community Health > 2012 > 37 > 1 > 15-24
Journal of Clinical Epidemiology > 2003 > 56 > 6 > 520-529