Gao Yuyan, Schwebel David C, Hu Guoqing
Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China.
Department of Psychology, University of Alabama at Birmingham.
JAMA Pediatr. 2018 Sep 1;172(9):887-888. doi: 10.1001/jamapediatrics.2018.1654.