[1] Univ Padua, Padua 10764, Italy
[2] Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Kaohsiung, Taiwan
[3] Med Univ Bialystok, Bialystok, Poland
[4] Az Osp Bologna Policl S Orsola Malpighi, Bologna, Italy
[5] SP ZOZ Wojewodzki Szpital Zakazny, Klin Obserwacyjno Zakazna, Warsaw, Poland
[6] Univ Klin Koln, Klin Gastroenterol & Hepatol, Cologne, Germany
[7] Ctr Diagnost Si Tratament Dr Viktor Babes, Bucharest, Romania
[8] Med Interna Hosp Vall DHebron, Barcelona, Spain
[9] Baylor Coll Med, Dallas, TX USA
[10] Beijing Novartis Pharma Co Ltd, Beijing, Peoples R China
[11] Novartis Pharma AG, Basel, Switzerland
[12] Natl Taiwan Univ Hosp, Taipei, Taiwan
[13] Natl Taiwan Univ, Coll Med, Taipei, Taiwan