Greenhalgh, Trisha; Robert, Glenn; Macfarlane, Fraser; … - In: Social Science & Medicine 61 (2005) 2, pp. 417-430
Producing literature reviews of complex evidence for policymaking questions is a challenging methodological area. There are several established and emerging approaches to such reviews, but unanswered questions remain, especially around how to begin to make sense of large data sets drawn from...