1. Department of Medicine, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
2. Timberland Medical Centre, Kuching, Sarawak, Malaysia
3. Subang Jaya Medical Centre, Subang Jaya, Selangor, Malaysia
4. Borneo Medical Centre, Kuching, Sarawak, Malaysia
5. Pantai Premier Pathology Sdn Bhd, Kuala Lumpur, Malaysia