1. Department of General Practice and Family Medicine, Chulabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand
2. Department of Medicine, Chulabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand
3. Center of Learning and Research in Celebration of HRH Princess Chulabhorn’s 60th Birthday Anniversary, Chulabhorn Royal Academy, Bangkok, Thailand
4. Central Laboratory Center, Chulabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand
5. Princess Srisavangavadhana College of Medicine, Chulabhorn Royal Academy, Bangkok, Thailand