Richard Pilbery FCPara is a Research Paramedic employed by Yorkshire Ambulance Service NHS Trust and Associate Lecturer at Sheffield Hallam University. Richard is a co-author of Ambulance Care Practice, Ambulance Care Clinical Skills, First Responder Care Essentials, and Casualty Care for Fire and Rescue, as well as Paramedic Case Studies. Kris Lethbridge MCPara is a Critical Care Paramedic working for Cornwall Air Ambulance and as a practitioner in the critical care unit at Royal Cornwall Hospital. He is also co-author of Ambulance Care Practice, Ambulance Care Clinical Skills, First Responder Care Essentials, and Casualty Care for Fire and Rescue.