1. Division of GastroenterologyDalin Tzu Chi HospitalBuddhist Tzu Chi Medical FoundationChiayiTaiwan
2. School of MedicineBuddhist Tzu Chi UniversityHualienTaiwan
3. Graduate Institute of Long-term CareTzu Chi University of Science and TechnologyHualienTaiwan
4. Dalla Lana School of Public HealthUniversity of TorontoTorontoCanada
5. Sepulveda Ambulatory Care CenterVeterans Affairs Greater Los Angeles Healthcare SystemNorth HillUSA
6. David Geffen School of Medicine at UCLALos AngelesUSA