1 Center for Perinatal Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA; Ohio Perinatal Research Network (OPRN), Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatrics, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Division of Neonatology, Nationwide Children's Hospital, Columbus, OH, USA; The Heart Center, Nationwide Children's Hospital, Columbus, OH, USA. Electronic address: carl.backes@nationwidechildrens.org.
2 Professor Emeritus, College of Nursing, University of Rhode Island, 02881 Kingston, RI, USA; Adjunct Professor of Pediatrics, Alpert School of Medicine, Brown University, 02912 Providence, RI, USA; Consultant, Neonatal Research Institute at Sharp Mary Birch Hospital, 92123 San Diego, CA, USA.
3 Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, CA, United States.