Network representation of interconnections between publications, the patients they sequenced, and the number and tissue classes of sequences available for each patient. The network was constructed using Cytoscape. Black nodes, containing the name of the first author, represent publications. Publication nodes are connected by edges to the patients they sequenced, represented by clear nodes with patient code printed at the bottom. In cases where multiple publications sequenced virus from the same patient, multiple publication nodes connect to a single patient node (patient NA118 in the upper right). Individual HIV sequences for each patient are represented by the colored dots within patient nodes: Brain-red, Meninges, choroid plexus, and CSF-yellow, Blood and Lymphoid-green, Other-blue. The total number of sequences for each patient scales the size of the patient node.