Databases	Key search terms	Findings
PubMed/Medline	("Physician Assistant*" OR "Mid Level Pract*" OR "Advance* Nurs* Pract*" OR "Consultant Nurse*" OR "Clinical Nurse Specialist*" OR "ANP*" OR "Advanc* Pract* Nurs**" OR "Nurse Practitioner*" OR "Nurse Clinician*" OR "Non-Physician*" OR "ENP*" OR "Emergency Nurs* Pract*" OR "Advanc* Clinical Pract*" OR "Nurse Led" OR "Nurse Specialist*").ti,ab ("meta analys*" OR "RCT*" OR "literature review*" OR "systematic review*" OR "randomised control trial*" OR "randomized control trial*" OR "scoping review*" OR "Cochrane Review*").ti,ab	429
Embase		605
CINHAL		324
Corchrane Registry		545
Cochrane Trials Cochrane EPOC		175 2
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