CJCP     2013 15 (2):  81-84    ISSN: 1008-8830  CN: 43-1301/R Physiological changes in serum procalcitonin concentrations in premature infants early after birth LIU Yun-Feng, TONG Xiao-Mei, ZHENG Fang-Yuan, PIAO Mei-Hua, NING Yong-Zhong Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China. tongxm2007@126.com Received: null  Revised: null  Online: null Supporting info