1. Department of Family and Preventive Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
2. Health Promotion Unit, Songklanagarind Hospital, Hat Yai, Songkhla, Thailand
3. Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
4. Health Impact Assessment Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand