[1] Univ Indonesia, Fac Med, Oxford Univ, Clin Res Unit Indonesia, Jakarta, Indonesia
[2] Univ Indonesia, Fac Med, Jakarta, Indonesia
[3] Mayo Clin, Div Gastroenterol & Hepatol, Rochester, MN USA
[4] Univ Oxford, Ctr Trop Med & Global Hlth, Nuffield Dept Clin Med, Oxford, England
[5] Univ Indonesia, Dr Cipto Mangunkusumo Hosp, Fac Med, Div Trop Med & Infect Dis,Dept Internal Med, Jakarta, Indonesia
[6] Univ Indonesia, Dr Cipto Mangunkusumo Hosp, Fac Med, Dept Clin Microbiol, Jakarta, Indonesia
[7] Univ Oxford, Clin Res Unit, Hanoi, Vietnam
[8] Univ Oxford, Univ Indonesia, Fac Med, Clin Res Unit Indonesia, Jalan Salemba Raya 6, Jakarta 10430, Indonesia