Dr Alwin Chuan MB BS (Hons), PGCertCU, FANZCA, Consultant Anaesthetist, Sydney, New South Wales Dr Chuan has a strong interest in perioperative ultrasonography, including ultrasound-guided regional anaesthesia. He has been a guest speaker and workshop tutor in Australia and internationally, and has written on ultrasound-guided regional techniques. Dr Chuan is actively involved in curriculum development of the postgraduate ultrasound degrees at the University of Melbourne, and in the Regional Anaesthesia Special Interest Group of the ASA/ANZCA/NZSA. Dr Chuan is a VMO at Liverpool Hospital, Sydney, where he helped establish an Anaesthesia Fellowship in perioperative ultrasonography. Dr David M Scott BMed, PGCertCU, FANZCA, Consultant Anaesthetist, Lismore Base Hospital, Lismore, New South Wales Dr Scott has interests in regional anaesthesia and military anaesthesia. Dr Scott is the founding chairman of the Regional Anaesthesia Special Interest Group of the ASA/ANZCA/NZSA. He has lectured on regional anaesthesia extensively, nationally and internationally, and has facilitated many regional anaesthesia workshops. Dr Scott is also a Group Captain in the Royal Australian Air Force Specialist Reserve and has been deployed overseas on many missions.