中国当代儿科杂志
儿童反复肺炎危险因素的病例对照研究
赵永利，刘正娟，王玉川
Risk factors for recurrent pneumonia in children: a case-control study
ZHAO Yong-Li, LIU Zheng-Juan, WANG Yu-Chuan
中国当代儿科杂志 . 2011, (12): 962 -965 .