1. Department of Gastroenterology and MetabolismHiroshima UniversityHiroshima Japan
2. Department of Internal MedicineFukui‐ken Saiseikai HospitalFukui Japan
3. Department of Gastroenterology and HepatologyMusashino Red Cross HospitalMusashino‐shi Tokyo Japan
4. Department of Medicine and Molecular ScienceGunma University Graduate School of MedicineMaebashi Gunma Japan
5. AbbVie, Inc.North Chicago IL
6. Department of HepatologyToranomon HospitalTokyo Japan