1. Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
2. Department of Gastroenterology, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
3. Department of Gastroenterology, Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350003, P.R. China