Klenov, V. E.
Boulet, S. L.
Mejia, R. B.
Kissin, D. M.
Munch, E.
Mancuso, A.
Van Voorhis, B. J.
Article History
Received: 26 April 2018
Accepted: 13 June 2018
First Online: 21 June 2018
Compliance with ethical standards
: We obtained study approval from the Institutional Review Board of the Centers for Disease Control and Prevention (CDC).
: The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.