Addendum: Han, Y.; Grogan-Kaylor, A.; Delva, J.; Xie, Y. Estimating the Heterogeneous Relationship Between Peer Drinking and Youth Alcohol Consumption in Chile Using Propensity Score Stratification. Int. J. Environ. Res. Public Health 2014, 11, 11879–11897
International journal of environmental  research and public health/International journal of environmental research and public health