[\'Shaanxi Academy of Traditional Chinese Medicine, Xi\'an, Shaanxi, China.\', \'Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang.\', \'Shaanxi Traditional Chinese Medicine Hospital, Xi\'an, Shaanxi, China.\']
Traditional Chinese medicine Lianhua Qingwen for treating COVID-19: A protocol for a meta-analysis and systematic review of randomized controlled trials.