K. Bunnan, R. Chaikomin, S. Lohsiriwat, S. Chomchai, S. Chomchai, and P. Akarasereenont, “Effect of Ayuraved Siriraj Herbal Recipe “Wattana†on Gastric Emptying Rate”, Siriraj Med J, vol. 64, no. 3, pp. 89–93, Jul. 2020.