Anti-Ulcer Activity of Spray-dried Powders Prepared from Aerial Parts Extracts of Ampelopsis cantoniensis, Nguyen, Duc Minh, Tran Quang Canh, Do Minh Trung, Pham Duc Thinh, Le Thi Hong Hanh, Nguyen Duy Bac, and Nguyen Van Thu , Pharmacognosy Journal, April 2022, Volume 14, Issue 2, p.276-281, (2022)