1 Department of Pediatrics/Division of Neonatology, Developmental Progress Clinic, Emory University School of Medicine, Children's Healthcare of Atlanta, 2015 Uppergate Drive, Atlanta, GA 30303, USA. Electronic address: iadamsc@emory.edu.
2 Department of Pediatrics/Division of Neonatology, University of Pennsylvania Perelman School of Medicine, Neonatal Follow-up, Children's Hospital of Philadelphia, 3401 Civic Center Boulevard, Room 2NW15, Philadelphia, PA 19104, USA. Electronic address: demauro@email.chop.edu.