editorial . 2016 Apr 8;10(4):e0004648. doi: 10.1371/journal.pntd.0004648
© 2016 Peter J. Hotez
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 credited.
Fig 1. Geological epochs over the last 5 million years.
