1. Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan, 523808, China
2. Chemistry Department, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan, Iran
3. Department of Gastroenterology, Huizhou Municipal Central Hospital, Huizhou, Guangdong 516001, China
4. Department of General Surgery, Dalang Hospital, Dongguan 523770, China