From *Telethon Kids Institute, Centre for Child Health Research, The University of Western Australia, Perth, Australia

the †Department of Gastroenterology, Perth Children’s Hospital, Perth, Australia

‡Developmental Disability WA, Perth, Australia

the §Department of Paediatrics, Fairfield Hospital, Sydney, Australia

∥Access Assistant Program, Disability Services, Women’s and Children’s Health Network, Adelaide, Australia

the ¶Curtin School of Allied Health, Curtin University, Perth, Australia.

Received February 6, 2023; accepted July 24, 2023.

The authors report no conflicts of interest.

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Sources of Funding: This study was funded by an anonymous bequest administered by the Department of Communities (previously the Disability Services Commission) in Western Australia, and an Australian National Health & Medical Research Council project grant (APP1103746). Dr Downs is supported by Stan Perron Charitable Foundation Research Fellowship.

Address correspondence and reprint requests to Jenny Downs, PhD, Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth, WA 6872, Australia (e-mail: [email protected]).