TY - JOUR AU - Soumerai, Stephen B. AU - Starr, Douglas AU - Majumdar, Sumit R. PY - 2015 TI - How Do You Know Which Health Care Effectiveness Research You Can Trust? A Guide to Study Design for the Perplexed T2 - Preventing Chronic Disease JO - Prev Chronic Dis SP - E101 VL - 12 CY - Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. N2 - SN - 1545-1151 UR - http://dx.doi.org/10.5888/pcd12.150187 DO - 10.5888/pcd12.150187 ER -