Funding for this research was provided by:
Research Program on Hepatitis from the Japan Agency for Medical Research and Development, AMED (18fk0210020h0002)
Received: 29 January 2020
Accepted: 17 September 2020
First Online: 25 September 2020
Ethics approval and consent to participate
: The study was carried out in accordance with the ethical guidelines of the Declaration of Helsinki and approved by the ethics and research committees of Hiroshima University Hospital (Hiroshima, Japan: no. E-946). Informed consent was obtained from each patient in writing.
: Not applicable.
: Kazuaki Chayama has received honoraria from Bristol-Myers Squibb and MSD K.K. and research funding from Dainippon Sumitomo Pharma and AbbVie. Michio Imamura has received research funding from Bristol-Myers Squibb.