Zwald ML, Eyler AA, Haire-Joshu D, Handy SL, Harris JK, Moreland-Russell S, Brownson RC. Network influences on the development and implementation of active transportation policies in six U.S. cities. Prev Med. 2019 Jan;118:176-183. doi: 10.1016/j.ypmed.2018.10.026. Epub 2018 Oct 29. PubMed [citation] PMID: 30385154