AUTHOR=Wei Hongjuan , Chang Xin , Wang Jin TITLE=Association of red blood cell distribution width–coefficient of variation with cranial ultrasound abnormalities in neonatal hyperbilirubinemia: a retrospective cross-sectional study JOURNAL=Frontiers in Pediatrics VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2024.1488731 DOI=10.3389/fped.2024.1488731 ISSN=2296-2360