[1] Univ Hawaii, Internal Med Residency Program, Honolulu, HI USA
[2] Mahidol Univ, Phramongkutklao Coll Med, Bangkok, Thailand
[3] Srinakharinwirot Univ, Fac Med, Bangkok, Thailand
[4] Mahidol Univ, Siriraj Hosp, Fac Med, Bangkok, Thailand
[5] Chiang Mai Univ, Fac Med, Chiang Mai, Thailand
[6] Univ Calif Irvine, Dept Med, Irvine, CA USA
[7] Mahidol Univ, Fac Med, Ramathibodi Hosp, Bangkok, Thailand
[8] Albert Einstein Med Ctr, Philadelphia, PA USA
[9] Texas Tech Univ Hlth Sci Ctr, Lubbock, TX USA
[10] Griffin Hosp, Griffin, TN USA