From the Cochrane Handbook, Chapter 4 (4.2.1).
Medical/healthcare librarians and information specialists have an integral role in the production of Cochrane Reviews. There is increasing evidence of the involvement of information specialists in systematic reviews (Spencer and Eldredge 2018) and evidence to support the improvement in the quality of various aspects of the search process (Rethlefsen et al 2015, Meert et al 2016, Metzendorf 2016, Aamodt et al 2019).