Figure 2From: The interhospital transfer network for very low birth weight infants in the United StatesThe 2122 hospitals were assigned to 50 statistically determined communities, i.e. a group of hospitals that transfers many more infants amongst each other than with hospitals outside of the “community.” Communities are represented by a minimum spanning polygon around 90% of the infant transfers. The borders have been obscured to protect the privacy of the health care facilitiesBack to article page