Fig. 8
From: Where is the policy? A bibliometric analysis of the state of policy research on medical tourism
Citation network of policy-related publications on medical tourisms. Note: The figure shows how frequently publications (with at least 15 citations) cite or get cited by others in the network. Nodes depict publications and their linkages convey citation relationships. Larger nodes indicate publications with more citations. Publications with close citation relationships are clustered together in nodes of the same color