Kalipeni Ezekiel, Iwelunmor Juliet, Grigsby-Toussaint Diana
a Department of Geography and Geographic Information Science , University of Illinois at Urbana Champaign , Champaign , IL , USA.
b Department of Kinesiology and Community Health , University of Illinois at Urbana Champaign , Champaign , IL , USA.
Glob Public Health. 2017 Jun;12(6):643-647. doi: 10.1080/17441692.2017.1304622.