1

Article Usage and Citations as a function of Age

Total usage includes page views and downloads from PLOS and PMC. Bubble size correlates with Scopus citations and bubble color with the PLOS journal.

SOURCE: 38 published articles from December 27, 2012 to July 30, 2013

2

Article Usage and Mendeley Bookmarks as a Function of Time

usage includes page views and downloads from PLOS and PMC.size correlates with Mendeley bookmarks and bubble color with the PLOS journal.

SOURCE: 38 published articles from December 27, 2012 to July 30, 2013

3

Article Usage by Subject Area

size correlates with the number of articles associated with the subject area and the color intensity with total usage.

SOURCE: 38 published articles from December 27, 2012 to July 30, 2013

4

Research Articles by Location

of 6957 authors for 38 articles.size and color correlates with the number of authors in that location.

SOURCE: 38 published articles from December 27, 2012 to July 30, 2013