TY - JOUR AU - Naci, Huseyin AU - Soumerai, Stephen B. PY - 2016 TI - History Bias, Study Design, and the Unfulfilled Promise of Pay-for-Performance Policies in Health Care T2 - Preventing Chronic Disease JO - Prev Chronic Dis SP - E82 VL - 13 CY - Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. N2 - SN - 1545-1151 UR - http://dx.doi.org/10.5888/pcd13.160133 DO - 10.5888/pcd13.160133 ER -