1. Department of Pediatrics, Divisions of Neonatology and Allergy, Immunology, and Infectious Diseases, University of Texas Health San Antonio, San Antonio, Texas
2. Department of Obstetrics and Gynecology, Dimmit Regional Hospital, Carrizo Springs, Texas
3. Department of Family Medicine, Cuero Regional Hospital, Cuero, Texas
4. Department of Obstetrics and Gynecology, Hill Country Memorial Hospital, Fredericksburg, Texas
5. Division of Neonatology, Department of Pediatrics, University of Texas Health San Antonio, San Antonio, Texas