CJCP     2019 21 (5):  436-440    ISSN: 1008-8830  CN: 43-1301/R Causes of chronic cough in children in Chongqing, China: an analysis of 202 cases XU Mao-Zhu, LIU Jing-Yue, FU Zhou Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China Received: 2018-11-16  Revised: null  Online: null Supporting info null