CJCP     2002 4 (6):  489-490    ISSN: 1008-8830  CN: 43-1301/R Effect of mechanical ventilation on the activities of catalase,peroxidase and superoxide dismutase in neonates LIU Yong-Mei, FENG Zhi-Chun, WANG Bin, HUANG Wei-Min Received: null  Revised: null  Online: null Supporting info