Dr. Christophe Fortin is a professor of psychology at the University of Ottawa and an adjunct professor of psychology at UQAM. He currently holds several governmental and institutional research grants supporting his work on PTSD and has been, for the last 15 years, studying several aspects of the disorder. His current research interests focus on the efficacy of psychotherapy and the healthcare costs associated with this disorder. He is actually codirecting, at the Trauma Studies Centre in Montreal, a randomized control trial on the efficacy of two length-flexible cognitive-behavioral therapies for PTSD. His expertise led him to give several trainings to first responders, and he is currently developing a psychological first aid program for firefighters with PTSD or with subclinical symptoms.