Study selection and data extraction
All of papers retrieved from five databases were exported into Endnote version X8. After removing duplications, remaining papers were screened for eligibility criteria by the first and second authors independently. The potentially eligible full- text papers were then located for screening by two authors, and any uncertainty encountered between them was resolve by the third author. Reasons for excluding papers were reported in Figure 1.
The data of included ten papers was extracted by the first author (HAO) into a data extraction sheet developed for this study. The datasheet was used to report the following data; (1) citation information; (2) number of studies included; (3) review aim(s); (4) main findings (challenges and facilitators) summarised based on the ICCC model (Table 2).