CJCP     2011 13 (12):  962-965    ISSN: 1008-8830  CN: 43-1301/R Risk factors for recurrent pneumonia in children: a case-control study ZHAO Yong-Li, LIU Zheng-Juan, WANG Yu-Chuan Department of Pediatrics, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, China. zhaoyongli79@yahoo.com.cn Received: null  Revised: null  Online: null Supporting info