Databases | (1) MEDLINE, (2) PsycInfo, (3) Cochrane Library, (4) CRD database (DARE), (5) Cochrane Effective Practice and Organisation of Care (EPOC) group, (6) ISI Web of Knowledge, (7) Health Evidence.org, (8) PDQ-Evidence, (9) ERIC, (10) EMBASE, (11) TRIP |
Grey literature | We will review only published articles. |
Other sources | Reference tracking, citation tracking, hand-searching journals |