1. Department of Internal MedicineInje University Ilsan Paik HospitalGoyang Republic of Korea
2. Department of Internal MedicineYonsei University College of MedicineSeoul Republic of Korea
3. AIDS Research InstituteYonsei University College of MedicineSeoul Republic of Korea
4. Department of Internal MedicineKorea University College of MedicineSeoul Republic of Korea
5. Department of Internal MedicineSchool of Medicine, Kyungpook National UniversityDaegu Republic of Korea
6. Department of Internal MedicineInha University School of MedicineIncheon Republic of Korea
7. GlaxoSmithKline KoreaSeoul Republic of Korea