Boston Children's Hospital is a freestanding acute care children's hospital located at the centre of Harvard Longwood Medical and Academic Area in Boston, Massachusetts. The hospital is home to the world's largest pediatric research enterprise, and it is the leading recipient of pediatric research funding from the National Institutes of Health. It provides comprehensive pediatric specialties and subspecialties to infants, children, teens, and young adults aged 0–21 throughout Massachusetts, the United States, and the world.