Gideon Koren Gideon Koren, MD is Director of the Motherisk Program at the Hospital for Sick Children, Toronto, Ontario, Canada, and Professor of Pediatrics, Pharmacology, Pharmacy, Medicine, and Medical Genetics at the University of Toronto, Canada. The autho of over 800 peer-reviewed articles, abstracts, and books, including Nausea and Vomiting of Pregnancy: State of the Art 2000 (The Motherisk Program), he is a Diplomat of the American College of Medical Toxicology and the Royal College of Physicians and Surgeons of Canada, as well as a Senior Scientist of the Canadian Institutes of Health Research. Read More Read Less