Fig. 10From: Where is the policy? A bibliometric analysis of the state of policy research on medical tourismCo-citation network of journals publishing policy research on medical tourism. Note: The figure shows how frequently journals (with at least 25 citations) are cited together in publications. Nodes depict journals and their linkages convey co-citation relationships. Larger nodes indicate journals with more citations. Link strengths indicate the frequency with which they are co-cited. Journals that are co-cited often are clustered together in nodes of the same colorBack to article page