1. Department of Medicine, Kepala Batas Hospital, Penang, Malaysia
2. School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
3. Clinical Research Centre, Seberang Jaya Hospital, Penang, Malaysia
4. Attest Research Sdn Bhd, Penang, Malaysia
5. Clinical Research Centre, Penang General Hospital, Penang, Malaysia
6. Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
7. Butterworth Health Clinic, Penang, Malaysia
8. Bandar Tasek Mutiara Health Clinic, Penang, Malaysia
9. Seberang Jaya Health Clinic, Penang, Malaysia
10. Penaga Health Clinic, Penang, Malaysia
11. Bayan Baru Health Clinic, Penang, Malaysia
12. Department of Medicine, Kulim Hospital, Kedah, Malaysia
13. Sejahtera Centre, Universiti Sains Malaysia, Penang, Malaysia
14. Department of Outpatient Care, Sungai Bakap Hospital, Penang, Malaysia
15. Department of Medicine, Penang General Hospital, Penang, Malaysia
16. Department of Medicine, Seberang Jaya Hospital, Penang, Malaysia