Top 10 ranking of institutions by degree and betweenness centrality.

<p>Top 10 ranking of institutions by degree and betweenness centrality.</p

Flow chart, Web of Science Core Collection search results filtered stepwise (by years, author and document type).

<p>Flow chart, Web of Science Core Collection search results filtered stepwise (by years, author and document type).</p

Articles of all authors from 1976–2015 (n = 4,587).

<p>Articles of all authors from 1976–2015 (n = 4,587).</p

Global EVD research network, countries linked by cumulative co-authorships from 1976–2015, Layout: Geolayout.

<p>Global EVD research network, countries linked by cumulative co-authorships from 1976–2015, Layout: Geolayout.</p

SNA parameters and metrics of the global EVD research network, for overall network and stratified by 10-year periods.

<p>SNA parameters and metrics of the global EVD research network, for overall network and stratified by 10-year periods.</p

Cumulative EVD research network on institution level.

<p>Nodes sized by degree centrality. Research communities are colour-coded. Layout: Force Atlas 2.</p

Degree centrality distribution, network from 2006–2015 [median (blue line), mean (red line)].

<p>Degree centrality distribution, network from 2006–2015 [median (blue line), mean (red line)].</p

EVD research network.

<p>Publications from 1996–2005 by degree centrality (colour and size of nodes), Layout Force: Atlas 2.</p

Giant components of individual co-author networks.

<p>Individual researcher networks are based on co-author networks affiliated with Germany for (A) Leishmaniasis, (B) Schistosomiasis, (C) Chagas disease, (D) Sleeping Sickness and (E) Onchocerciasis. The figure shows giant components, i.e., the components in the network that include the largest number of authors, and smaller components are not shown. The node size is scaled by betweenness centrality, and each node represents individual authors with more than two publications. Links between the nodes (edges) represent a co-authored publication. The 'Force Atlas' layout simulates repulsion forces between nodes, and thus the network spreads as far as the edges holding them together will allow, allowing for the interpretation of how closely authors are working together. For further explanation of network analysis terms, please see <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0004182#pntd.0004182.t001" target="_blank">Table 1</a>.</p

Number of international NTD publications listed in SCOPUS from around the world and with author affiliations to Germany by diseases, as ordered by the number of publications with German affiliations.

<p>Number of international NTD publications listed in SCOPUS from around the world and with author affiliations to Germany by diseases, as ordered by the number of publications with German affiliations.</p