Flocke SA, Hoffman R, Eberth JM, Park H, Birkby G, Trapl E, Zeliadt S. The Prevalence of Tobacco Use at Federally Qualified Health Centers in the United States, 2013. Prev Chronic Dis. 2017 Apr 6;14:E29. doi: 10.5888/pcd14.160510.
Flocke SA, Hoffman R, Eberth JM, Park H, Birkby G, Trapl E, Zeliadt S. The Prevalence of Tobacco Use at Federally Qualified Health Centers in the United States, 2013. Prev Chronic Dis. 2017 Apr 6;14:E29. doi: 10.5888/pcd14.160510.