Funding for this research was provided by:
Nutricia Early Life Nutrition in association with the Royal Orthopaedic Hospital Trust NHS
Received: 6 February 2018
Accepted: 19 July 2019
First Online: 15 August 2019
Ethics approval and consent to participate
: Ethics approval obtained through the Leeds Beckett University (formerly Leeds Metropolitan University) Health and Social Sciences Faculty Ethics Committee. Written informed consent to participate was obtained from all participants involved in the study.
: Not applicable
: The authors declare that they have no competing interests.