Commentary: The Modulation of Chaihu Shugan Formula on Microbiota Composition in the Simulator of the Human Intestinal Microbial Ecosystem Technology Platform and Its Influence on Gut Barrier and Intestinal Immunity in Caco-2/THP1-Blue™ Cell Co-Culture Model - Yu, Yang; Liu, Cun; Liu, Jingyang; Zhuang, Jing; Sun, Changgang (Frontiers in Pharmacology, 2022)