From the *Department of Anaesthesiology and Intensive Care, Faculty of Medicine and Health Sciences, University Malaysia Sarawak, Sarawak, Malaysia

Departments of †Neurosurgery

‡Anaesthesiology and Intensive Care, Sarawak General Hospital, Sarawak, Malaysia.

Accepted for publication July 5, 2022.

Funding: None.

The authors declare no conflicts of interest.

Address correspondence to Samuel Ern Hung Tsan, MAnaes, FCAI, Faculty of Medicine and Health Sciences, University Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300 Kota Samarahan, Sarawak, Malaysia. Address e-mail to [email protected].