Long, M W
Ward, Z J
Resch, S C
Cradock, A L
Wang, Y C
Giles, C M
Gortmaker, S L
Article History
Received: 23 March 2016
Revised: 16 June 2016
Accepted: 23 June 2016
First Online: 27 July 2016
Competing interests
: The authors declare no conflict of interest.<b>Disclaimer</b>This work is solely the responsibility of the authors and does not represent the official views of the Centers for Disease Control and Prevention or any of the other funders.