Funding for this research was provided by:
National Institute for Health Research (CDF-2014-07-052)
Received: 31 October 2018
Accepted: 31 July 2019
First Online: 8 August 2019
Ethics approval and consent to participate
: Approved by University of Leeds School of Medicine Research Ethics Committee. Consent for the ethnographical observations to take place was provided by participating children’s centres and local authority leads. Written informed consent was provided by all participants of interviews and focus groups.
: Not applicable.
: The authors declare that they have no competing interests.