Efficacy and safety of Anluohuaxian in the treatment of patients with severe Coronavirus disease 2019- a multicenter, open label, randomized controlled study: a structured summary of a study protocol for a randomised controlled trial. - Zhang, Chi; Li, Jiawen; Wu, Zhao; Wang, He; Que, Chengli; Zhao, Hong; Wang, Guiqiang (Trials, 2020)