1. Pain Management Service; Raffles Hospital; Singapore
2. Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
3. Departments of Pharmacology; Clinical Epidemiology and Anesthesiology; University of Santo Tomas Faculty of Medicine and Surgery and the UST Hospital; Manila Philippines
4. Institute of Clinical Medicine, School of Medicine; National Yang-Ming University; Taipei Taiwan R.O.C.
5. Division of Medical Oncology; Department of Oncology; Taipei Veterans General Hospital; Taipei Taiwan R.O.C.
6. Department of Anesthesiology and Pain Medicine; Seoul National University School of Medicine; Seoul Korea
7. Mundipharma Pte Ltd.; Singapore
8. Department of Clinical Oncology; Beacon International Specialist Centre; Selangor Malaysia
9. Sun Yat-Sen University Cancer Center; Guangzhou China