Funding for this research was provided by:
National Institute for Health Research (10/3006/01)
Education Endowment Foundation (14/52/38)
Article History
First Online: 2 July 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethical approval was granted by the University of Manchester Research Ethics Committee (GBG ref: 15126; PATHS ref: 11470).
: This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.