CJCP     2002 4 (6):  525-526    ISSN: 1008-8830  CN: 43-1301/R Day care pediatrics: an experience of 15008 cases ZHENG Cheng-Zhong, ZHANG Jun, SUN Yu-Ping, NIU Jie, WU Xiao-Juan, DU Hui-Zhen Received: null  Revised: null  Online: null Supporting info