1. Guidance on choosing qualitative evidence synthesis methods for use in health technology assessments of complex interventions;Booth,2016
2. Qualitative evidence synthesis;Booth,2017
3. Introducing a series of methodological articles on considering complexity in systematic reviews of interventions;Anderson;J Clin Epidemiol,2013
4. Systematic reviews of complex interventions: framing the review question;Squires;J Clin Epidemiol,2013
5. Complex interventions and their implications for systematic reviews: a pragmatic approach;Petticrew;J Clin Epidemiol,2013