Dr. Constance Travers should be included in the author byline instead of the Acknowledgments. He should be listed as the seventh author, and his affiliation is #1: Abt Associates, Boulder, Colorado, United States of America. The contributions of this author are as follows: Conceived and designed the experiments, analyzed the data, and wrote the manuscript.
Authors: Cameron Wobus; Robert Prucha; David Albert; Christine Woll; Maria Loinaz; Russell Jones; Constance Travers Journal: PLoS One Date: 2015-12-08 Impact factor: 3.240
Authors: Matthew L Keefer; Tami S Clabough; Michael A Jepson; Eric L Johnson; Christopher A Peery; Christopher C Caudill Journal: PLoS One Date: 2018-09-21 Impact factor: 3.240