Rush has been designated by the state of Illinois to serve as the regional center for a network of Chicago-area hospitals providing quality care to high-risk mothers and babies. The Rush network is one of 10 perinatal centers designated by the State of Illinois and is currently the largest, involving 18 hospitals delivering more than 30,000 infants. The Rush Perinatal Center maintains a 24-hour hotline to facilitate the transfer of high-risk mothers and infants. Through the perinatal center, Rush offers an extensive series of classes for physicians, nurses and other health professionals.