1. aSection of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado
2. bDepartment of Pediatrics, Denver Health Medical Center, Denver, Colorado
3. cDepartment of Emergency Medicine, Denver Health Medical Center, Denver, Colorado
4. dSection of Emergency Medicine, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado
5. eObstetrix Medical Group of Colorado - Neonatology, Denver, Colorado