1. Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
2. Department of Medicine, The University of Chicago, Chicago, Illinois.
3. Department of Pediatrics, The University of Chicago, Chicago, Illinois.
4. The Committee on Genetics, The University of Chicago, Chicago, Illinois.
5. Department of Medicine, Ratchaburi Hospital, Ratchaburi, Thailand.