1. Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
2. Center for Education, Culture and Health Opportunities (ECHO) Research Group International, Aflao, Ghana
3. Department of Clinical Medicine, Kabarak University, Nakuru, Kenya
4. Key Laboratory of Myocardial Ischemia, Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Chinese Ministry of Education, Harbin, China
5. School of Medicine and Health Sciences, University for Development Studies, Tamale, Ghana
6. Ghana Health Service, Bolgatanga, Ghana