1. Department of Gastroenterology, Yunnan Institute of Digestive Diseases, The First Affiliated Hospital of Kunming Medical University, Kunming, China
2. College of Science, Yunnan Agricultural University, Kunming, China
3. CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Xishuangbanna, China