Letter: Liver injury in COVID-19: Diagnosis and associated factors-Authors' reply.

As coronavirus disease 2019 (COVID-19) is a new, emerging infectious disease, guidance or consensus on liver injury are lacking . The definition of COVID-19 associated liver injury in our manuscript was as alanine transaminase (ALT), aspartate aminotransferase (AST) or bilirubin above the upper limit of normal (ULN), which were 50 U/L, 40 U/L, and 26 μmol/l respectively. The abnormal test results of ALT, AST and total bilirubin at baseline data were defined as liver injury in our manuscript.