1. Department of Primary Care Medicine, Faculty of Medicine, Universiti Teknologi MARA, Batu Caves, Malaysia
2. Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Faculty of Medicine,Universiti Teknologi MARA, Jalan Hospital, Sungai Buloh, Malaysia
3. Department of Public Health Medicine, Faculty of Medicine, Universiti Teknologi MARA, Jalan Hospital, Sungai Buloh, Malaysia