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. 2011 Jan 7;6(1):e15923. doi: 10.1371/journal.pone.0015923

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Roth et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Proportion of links going from sources to centers of a certain group (I, II, III), considering links of decreasing importance for each given source, when raising (from the first link appearing, at left, to the last link, at right).

Inline graphic — Proportion of links going from sources to centers of a certain group (I, II, III), considering links of decreasing importance for each given source, when raising (from the first link appearing, at left, to the last link, at right).