Chris Callaghan ACP BSc (hons) Chris Callaghan ACP, BSc (Hons) Chris Callaghan is an Advanced Care Paramedic and Critical Care Paramedic Resident with Ornge Air Ambulance in Ontario. Prior to completing his paramedic education Chris completed an Honours Bachelor of Science in Biomedical Science from the University of Guelph. Chris has published on Mass Gathering Medicine with the Mass Gathering Medicine Interest Group at the University of British Columbia. Chris hopes to continue to contribute to paramedic led research initiatives, and is passionate about evidence-based practice within paramedicine. View his research on ResearchGate.