May 28, Jaques Bradwejn, president of Ottawa University School of Medicine, Canada and Melissa Forgie, vice president of the school, and their delegation visited our hospital. Professor Sun Kun, Professor Wu Hao and the heads of the Key Laboratory of Environment and Children’s Health, Shanghai Institute for Pediatric Research and relevant department leaders received delegations. During the visit, Professor Mark Walker, director of Obstetrics and Gynecology Department of Ottawa University made a wonderful lecture. In recent years, Ottawa University in Canada and our hospital have maintained a good exchange and cooperation relationship and forged a profound friendship. This visit will further promote bilateral cooperation and exchange in the aspects of the exchange of young doctors, clinical treatment, scientific research and teaching as well.