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Contributors SS and K-SL are founders of the SALSA programme. SS is the director of the SALSA programme and has been since its inception. SS contributed to this editorial equally with BCF and VAS. IM and K-SL revised and edited the editorial after programme implementation.
Competing interests None declared.
Provenance and peer review Commissioned; externally peer reviewed.
Correction notice This paper has been amended since it was published Online First. Owing to a scripting error, some of the publisher names in the references were replaced with ‘BMJ Publishing Group’. This only affected the full text version, not the PDF. We have since corrected these errors and the correct publishers have been inserted into the references.