1. Social, Economic and Administrative Pharmacy (SEAP) Graduate Program, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
2. Department of Surgery, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
3. Cancer Information Center, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
4. Social and Administrative Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
5. Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK