1. School of Pharmaceutical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia
2. Pharmacy Department, Hospital Pulau Pinang, Ministry of Health Malaysia, Pulau Pinang, Malaysia
3. Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, Malaysia
4. Trauma and Emergency Department, Hospital Kulim, Ministry of Health Malaysia, Kedah, Malaysia
5. Clinical Research Centre, Hospital Sultanah Bahiyah, Ministry of Health Malaysia, Kedah, Malaysia