CJCP     2004 6 (1):  34-37    ISSN: 1008-8830  CN: 43-1301/R Signif icance of measuring urinary catecholamines metabol ites levels by high performance l iquid chromatography ( HPLC) in the early diagnosis of neuroblastoma WANG Ya-Zhu, LI Qiang, ZHANG Jin-Hua, DUAN Shu-De, GUO Dui-Shan, ZHANG Hai-Peng Department of Hematology , Second Hospital of China Medical University , S henyang 110004 , China Received: null  Revised: null  Online: null Supporting info