Cai-Xia Yan1, He-Sheng Luo2, Bing-Hong Zhang1*, Ri-Hong Zhao1 and Hai-Xia Zhang1
1Department of Pediatrics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan 430060, PR China.
2Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China.
