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