Dr. Klein currently serves as Medical Geneticist and Chief Executive Officer at the Martinsried Center for Human Genetics and Laboratory Medicine, Martinsried, Germany, where he specializes in developing innovative molecular genetic screening tests. In the past, he has served as Senior Researcher at University Hospital München, München, Germany; Research Associate at the National Institutes of Health (USA); and Research Associate at the National Heart, Lung, and Blood Institute, Division of Intramural Research, Molecular Disease Branch.