Investigation of therapeutic effect of Longchai Formula Granule on chronic hepatitis B patients: A double-blind, controlled and randomized clinical trialZhanpeng Yan, Tingting Xu, Kelei Su, Chi Wang, Tong Yan, Zhong Hua, Erli Gu and Fangshi ZhuBIO Web Conf., 8 (2017) 01029DOI: https://doi.org/10.1051/bioconf/20170801029