1. KPJ Ipoh Specialist Hospital, Ipoh, Perak, Malaysia
2. Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia Kubang Kerian, Kelantan, Malaysia
3. Division of Neurosurgery, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
4. Gleneagles Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
5. Department of Neurosurgery, Tunku Abdul Rahman Neuroscience Institute (IKTAR), Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
6. Division of Neurosurgery, Hospital Canselor Tuanku Muhriz Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
7. Department of Neurosurgery, Sarawak General Hospital, Kuching, Sarawak, Malaysia
8. Department of Neurosurgery, Hospital Queen Elizabeth II, Kota Kinabalu, Sabah, Malaysia
9. Division of Neurosurgery, Hospital Tuanku Ja’afar, Seremban, Negeri Sembilan, Malaysia
10. Department of Neurosurgery, Hospital Sungai Buloh, Sungai Buloh, Selangor, Malaysia
11. Department of Neurosurgery, Penang General Hospital, Georgetown, Pulau Pinang, Malaysia
12. Department of Neurosurgery, Hospital Sultanah Aminah Johor Bahru, Johor Bahru, Johor, Malaysia
13. Department of Neurosurgery, Hospital Sultanah Nur Zahirah, Ministry of Health Malaysia, Kuala Terengganu, Terengganu, Malaysia
14. Department of Neurosurgery, Hospital Raja Permaisuri Bainun, Ipoh, Perak, Malaysia
15. Division of Neurosurgery, International Islamic University Malaysia (IIUM), Kuantan, Pahang, Malaysia