Additional File 2.
Qualitative methodology Search strategies. This includes the search terms for used in the three qualitative methods search strategies. Each strategy was modified to suit each of the six electronic bibliographic databases making a total of 18 search strategies (on six databases using three qualitative methodology variations).
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Shaw et al. BMC Medical Research Methodology 2004 4:5 doi:10.1186/1471-2288-4-5