Figure 1 PRISMA Flow chart of the study selection and review
process
Supplementary material
Seven appendices are supplied separately:
Appendix 1: Search strings databases
Appendix 2: Observation list
Appendix 3: Topic guide interviewees
Appendix 4: Data extraction form
Appendix 5: Coding tree
Appendix 6: COREQ Checklist
Appendix 7: Study characteristics and methodological quality assessment