Methods for the synthesis of qualitative research: a critical review
Worked examples of alternative methods for the synthesis of qualitative and quantitative research in systematic reviews
Conducting a meta-ethnography of qualitative literature: Lessons learnt
Consolidated criteria for reporting qualitative research (COREQ): a 32-item checklist for interviews and focus groups.
A synthesis technique for grounded theory data analysis.
Sampling in Qualitative Research : Insights from an Overview of the Methods Literature