. 2015 Aug 11;10(8):e0135115. doi: 10.1371/journal.pone.0135115
© 2015 Friedemann Smith 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.
Fig 1. Search terms.
