The Division of Human Genetics was founded by Josef Warkany, MD, who arrived from Vienna in 1932. He spent his entire and highly productive career at Cincinnati Children’s. Warkany is recognized for proving that mercury in teething powders and ointments caused acrodynia, a painful childhood disease. His work led to mercury being removed from these products. Known as the founder of teratology, he did pioneering research on nutritional and environmental factors that cause birth defects. Since then, Cincinnati Children’s has continued to excel in clinical care, diagnostic laboratory services, genetic education and research.