1. University of Hawaii Internal Medicine Residency Program; Honolulu HI USA
2. Faculty of Medicine Ramathibodi Hospital; Mahidol University; Bangkok Thailand
3. Faculty of Medicine Siriraj Hospital; Mahidol University; Bangkok Thailand
4. Department of Pathology; Duke University Medical Center; Durham NC USA
5. Department of Medicine; Einstein Medical Center; Philadelphia PA USA
6. Department of Medicine; Texas Tech University Health Sciences Center; Lubbock TX USA
7. Department of Internal Medicine; Michigan Medicine; University of Michigan; Ann Arbor MI USA