1. Department of Anaesthesia and Acute Pain Management, Peninsula Health, Frankston, Australia
2. Department of Anaesthesia, University of Papua New Guinea, Port Moresby, Papua New Guinea
3. Department of Anaesthesia, Port Moresby General Hospital, Port Moresby, Papua New Guinea
4. School of Medicine and Health Sciences, University of Papua New Guinea, Port Moresby, Papua New Guinea
5. Faculty of Medical and Health Sciences, Divine Word University, Madang, Papua New Guinea
6. Department of Anaesthesia, The Children’s Hospital at Westmead and St George Hospital, Sydney, Australia