Fig. 4From: The health impact of trade and investment agreements: a quantitative systematic review and network co-citation analysisCo-citation of studies. Notes: Created using VOSViewer Version 1.6.1. The network map shows co-citation patterns of the 117 journals cited at least 5 times within the studies we reviewed. Node size corresponds to the number of citations, lines correspond to the existence of a citation in either direction, and distance between nodes corresponds to the tendency for studies to be cited together by other studiesBack to article page