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Correspondence: AAlbetkova@cdc.gov
RI: manuscript concept; first draft, review and approval of the manuscript.
GS, DH: manuscript concept; first draft, revisions and approval of the manuscript.
AY, PD, PS, AR, BA, BAC, GN: review and approval of the manuscript.
AA: concept, development, review and approval of the manuscript.
All authors read and approved the final version to be published.
The authors would like to acknowledge with thanks all those who contributed to the development and review of this article, more specifically: Staff of IIE (International Institute of Education), Dr. Phil Brachman (Emory University; deceased), and Mary Helen O’Conner (Emory University).
The authors declare that they have no competing interests.
This article was developed through support of Hubert H. Humphrey Fellowship program at Emory University in Atlanta, USA.
Publication costs are funded by the U.S. Centers for Disease Control and Prevention.
© 2019 The Author(s).