The roles of physician associates and advanced nurse practitioners in the National Health Service in the UK: a scoping review and narrative synthesis.

"Declarations Ethics approval and consent to participateNot required. Consent for publicationNot required. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding HW, SC and SN were funded by the National Institute for Health Research (NIHR) (NIHR130812: Learning to Harness Innovation in Global Health for Quality Care (HIGH-Q)) using UK aid from the UK Government to support global health research. ME is funded by the same NIHR grant and a Wellcome Trust Senior Fellowship (#207522). MN undertook this work as an independent researcher. The views expressed in this publication are those of the authors and not necessarily those of the NIHR or the UK Government or Wellcome Trust."