Yu H, Zhao T, Liu S, Wu Q, Johnson O, Wu Z, Zhuang Z, Shi Y, Peng L, He R, Yang Y, Sun J, Wang X, Xu H, Zeng Z, Zou P, Lei X, Luo W, Li Y. Author response: MRGPRX4 is a bile acid receptor for human cholestatic itch. 2019 Sep 02;(). doi: 10.7554/elife.48431.026.