CJCP     2008 10 (6):  693-696    ISSN: 1008-8830  CN: 43-1301/R Relationship of the disease severity with ACE gene polymorphism and serum ACE activity in preterm infants HAN Tong-Yan, LI Zai-Ling, YE Hong-Mao, WANG Xin-Li, CUI Yun-Pu, PIAO Mei-Hua, TONG Xiao-Mei, LI Song Department of Pediatrics, Third Hospital of Peking University, Beijing 100083, China Received: null  Revised: null  Online: null Supporting info