Fig. 1
From: Economic evaluations of lymphatic filariasis interventions: a systematic review and research needs
Decision tree outlining the inclusion and exclusion of the identified studies. Some studies reported both cost-benefit and cost-effectiveness estimates. Several ‘grey literature’ texts (including policy reports) which were not found within the databases, were also identified (using Google Scholar and the bibliographies of other papers). A PRISMA checklist is provided in Additional file 1