Biddle, Lucy http://orcid.org/0000-0002-1090-8771
Derges, Jane
Goldsmith, Carlie
Donovan, Jenny L.
Gunnell, David
Funding for this research was provided by:
Department of Health (UK) Policy Research Programme (PRP023/0163)
Article History
Received: 18 September 2019
Accepted: 28 February 2020
First Online: 10 March 2020
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: Ethical approval for this study was granted by Frenchay Research Ethics Committee (NRES) and the Ethics and Law committee for ALSPAC. The study was conducted in accordance with ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All participants gave informed consent.