Dot Distribution Map (IMAGE) American Academy of Pediatrics Caption This is a dot distribution map of US Census blocks with distance to closest pediatric surgeon demonstrated by color and population density demonstrated by size. Credit Christian McEvoy Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.