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Footnotes
Collaborators Other members of the SACHA Study Team not identified by name in the author list: Annette Aronsson (Karolinska University Hospital), Paula Baraitser (King’s College Hospital), Sharon Cameron (Lothian Health Board), Caroline Free (LSHTM), Louise Keogh (University of Melbourne), Maria Lewandowska (LSHTM), Patricia Lohr (BPAS), Rebecca Meiksin (LSHTM), Clare Murphy (BPAS), Wendy Norman (University of British Columbia), Rachel Scott (LSHTM), Sally Sheldon (University of Kent) and Geoff Wong (University of Oxford).
Contributors RSF drafted the article and JS, MJP, JR and KW contributed to subsequent drafts. All members of the SACHA Study Team were sent the final draft and provided comments.
Funding The SACHA Study (https://www.lshtm.ac.uk/research/centres-projects-groups/sacha) is funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research Programme (NIHR Ref. No. NIHR129529).
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.