- Correspondence to Dr Kathryn Ferris, Paediatrics, Royal Belfast Hospital for Sick Children, Belfast Health and Social Care Trust, Belfast BT12 6BA, UK;
- Accepted June 21, 2021
- First published July 6, 2021.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.