Participants were randomly assigned to the following three groups : ( 1 ) a modern medicine control group ( MMC group , 36 patients ) ; ( 2 ) a `` tonifying qi and detoxification '' ( `` TQD '' ) group ( 72 patients ) ; and ( 3 ) a `` tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment '' ( `` TTK '' ) group ( 36 patients ) .