Preka, Evgenia http://orcid.org/0000-0001-7130-0439
Wan, Mandy http://orcid.org/0000-0001-8802-0425
Price, Karen L http://orcid.org/0000-0002-8113-1461
Long, David A http://orcid.org/0000-0001-6580-3435
Aitkenhead, Helen http://orcid.org/0000-0002-1787-9467
Shroff, Rukshana http://orcid.org/0000-0001-8501-1072
Funding for this research was provided by:
National Institute for Health Research (ICA-CDRF-2016-02-057, CDF-2016-09-038)
Article History
Received: 8 November 2019
Revised: 19 December 2019
Accepted: 2 January 2020
First Online: 22 January 2020
Compliance with ethical standards
: Samples were from children who participated in three separate research studies, all of which received local research ethics committee approval.
: The authors declare that they have no conflict of interest.
: Informed written consent was obtained from all carers and children assented to participate, where appropriate.