The Children's Hospital of Philadelphia (CHOP) is a children's hospital in Philadelphia, Pennsylvania, with its primary campus located in the University City neighborhood of West Philadelphia next to the campus of the University of Pennsylvania. It is one of the largest and oldest children's hospitals in the world, and United States' first hospital dedicated to the healthcare of children. CHOP has been ranked as the best children's hospital in the United States by U.S. News & World Report and Parents Magazine in recent years.