CJCP     2005 7 (3):  240-242    ISSN: 1008-8830  CN: 43-1301/R Serum leptin levels in children aged 3 to 9 years in an undeveloped region of China ZHANG Xiao, XIA Guang, LUO Jin-Song Department of Pediatrics, People s Hospital, Wuhan University, Wuhan 430060, China Received: null  Revised: null  Online: null Supporting info