1. Department of Clinical Epidemiology and Biostatistics Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand
2. Department of Pharmaceutics Clinical Pharmacy Slipakorn University Nakorn Prathom Thailand
3. Department of Community Pharmacy and Administrations Faculty of Pharmacy Slipakorn University Nakorn Prathom Thailand
4. School of Medicine, Dentistry and Biomedical Sciences Center for Public Health Queen's University Belfast Belfast UK
5. School of Medicine and Public Health Centre for Clinical Epidemiology and Biostatistics Hunter Medical Research Institute University of Newcastle New Lambton NSW Australia