Dr John A. Crowhurst B.Pharm., MB BS, Dip.(Obst.) RCOG, FANZCA, FRCA is a retired consultant anaesthetist with long clinical, teaching, research and academic experience both internationally and in Australia. Currently Hon. Archivist for the Obstetric Anaesthetists' Association and Fellow Emeritus at the Women's & Children's Hospital in North Adelaide, his most recent position prior to retirement in 2010 was Senior Consultant Anaesthetist at Mercy Hospital for Women, Melbourne. He was Reader in Obstetric Anaesthesia at Imperial College, University of London; Director of Anaesthesia at Queen Charlotte's Hospital London, and Consultant Anaesthetist at Hammersmith Hospital in London from 1996 through 2003. He has held professorships in Chile, Brunei, USA, Kuwait, Malaysia and India and has lectured widely at prestigious colleges and organisations all over the world. He has published many research papers, editorials, book chapters and videos etc, and has lectured/taught in some 35 countries.