1 Section on Neonatal-Perinatal Medicine, Department of Pediatrics, The University of Oklahoma Health Sciences Center, 1200 N. Everett Drive, ETNP 7504, Oklahoma City, OK 73104, USA. Electronic address: vadim-ivanov@ouhsc.edu.
2 Neonatal-Perinatal Medicine, Associate Director PremieR Clinic, Section on Neonatal-Perinatal Medicine, Department of Pediatrics, The University of Oklahoma Health Sciences Center, 1200 Everett Drive, ETNP 7504, 7th Floor North Pavilion, Oklahoma City, OK 73104.