Letters to the EditorFree Continuing Professional Development Resources for Low-Resource SettingsAuthorsHeather G. MackHelena Prior FilipeKarl C. GolnikYear: 2015Volume: 81 Issue: 5Page/Article: 731-732DOI: 10.1016/j.aogh.2016.01.001Published on Mar 29, 2016Peer ReviewedCC BY 4.0