Is the priority review voucher program stimulating new drug development for tropical diseases?

PLoS Neglected Tropical Diseases
http://www.plosntds.org/
(Accessed 18 Aug 2018)

Research Article
Is the priority review voucher program stimulating new drug development for tropical diseases?
Kirk W. Kerr, Thomas C. Henry, Kathleen L. Miller
| published 09 Aug 2018 PLOS Neglected Tropical Diseases
https://doi.org/10.1371/journal.pntd.0006695