Author C. Coughlan J. Ruzangi F. Neale Nezafat Maldonado M. Blair A. Bottle S. Saxena D. Hargreaves Year of Publication 2021 DOI 10.1136/archdischild-2020-321045 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS