Dr. Refika Ersu is a pediatric respirologist with a clinical and research expertise in sleep disordered breathing and chronic respiratory failure in children. After completing medical school and pediatrics residency in Istanbul, Turkey, she worked as a research fellow with Prof. Bush at Royal Brompton Hospital in London, UK. She then finished a 3 year pediatric respirology training in Children’s Hospital Los Angeles, California, US. After working in Marmara University in Turkey, she moved to Canada and is currently working as a pediatric respirologist and director of sleep laboratory and home ventilation programs in Children’s Hospital of Eastern Ontario, Ottawa, Canada. She is also a senior researcher at the Research Institute and teaches and holds a professor position at University of Ottawa.