Thivia Jegathesan1,2, Joel G. Ray1,3,4, Charles Donald George Keown-Stoneman5,6, Douglas M. Campbell1,2,7, Vibhuti Shah4,7,8, Howard Berger3,4, Robin Z. Hayeems4,9, Michael Sgro1,2,7✉and for the NeoHBC* Pre-phototherapy total serum bilirubin levels in extremely preterm infants. May 2022 Pediatric Research Nature