1. Veterans Research and Education FoundationVA Medical Center Oklahoma City OK USA
2. Department of PhysiologyUniversity of Oklahoma Health Science Center Oklahoma City OK USA
3. Department of GastroenterologyTianjin No. 254 Hospital Tianjin China
4. Division of Gastroenterology and HepatologyJohns Hopkins Center for Neurogastroenterology Baltimore MD USA
5. Department of traditional Chinese medicine1st Affiliated Hospital of Xi'an Jiao tong University Xi'an Shannxi China
6. Department of Hepatology1st Affiliated Hospital of Xi'an Jiao Tong University Xi'an Shannxi China