Yang, B., F.-Y. Xu, H.- jing Sun, Z. Zou, X.-Y. Shi, C.-Q. Ling, and L. Tang. “DA-CHENG-QI DECOCTION, A TRADITIONAL CHINESE HERBAL FORMULA, FOR INTESTINAL OBSTRUCTION: SYSTEMATIC REVIEW AND META-ANALYSIS”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 11, no. 4, May 2014, pp. 101-19, https://journals.athmsi.org/index.php/ajtcam/article/view/2222.