CJCP     2003 5 (4):  348-350    ISSN: 1008-8830  CN: 43-1301/R Clinicopathological characteristics of childhood Yolk sac tumor WU Hai-Yan, CHEN Da-Qing, TANG Ying-Zi, LIU Xiang-Qian Received: null  Revised: null  Online: null Supporting info