Bell, Joshua A.
Santos Ferreira, Diana L.
Fraser, Abigail
Soares, Ana Luiza G.
Howe, Laura D.
Lawlor, Deborah A.
Carslake, David
Davey Smith, George
O’Keeffe, Linda M.
Article History
Received: 24 August 2020
Accepted: 27 January 2021
First Online: 24 February 2021
Ethics approval and consent to participate
: Written informed consent was provided and ethical approval was obtained from the ALSPAC Law and Ethics Committee and the local research ethics committee. Consent for biological samples has been collected in accordance with the Human Tissue Act (2004). Informed consent for the use of data collected via questionnaires and clinics was obtained from participants following the recommendations of the ALSPAC Ethics and Law Committee at the time.
: Not applicable
: The authors declare that they have no competing interests.