Funding for this research was provided by:
World Health Organization
Article History
Received: 19 June 2020
Accepted: 23 September 2020
First Online: 2 October 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: All authors are members of the GRADE Working Group and have been involved in the group’s methodological work supporting a complexity perspective in evidence synthesis and guidelines. ER is a methods editor with Cochrane Public Health and a founding member of Cochrane Public Health Europe. SLN is an employee of WHO and oversees the quality of its guidelines. AM, SLN, and ER have published methods articles as part of the <i>BMJ Global Health</i> series on improving the process and methods for evidence-informed health decisions through a complexity perspective commissioned by WHO. The authors alone are responsible for the views expressed in this article and they do not necessarily represent the views, decisions or policies of the institutions with which they are affiliated.