Funding for this research was provided by:
United Nations Relief and Works Agency for Palestine Refugees
American Heart Association
National Heart, Lung, and Blood Institute
Juzoor for Health and Social Development
Institute of Human Nutrition, Columbia University
Received: 29 November 2019
Accepted: 30 July 2020
First Online: 26 August 2020
Ethics approval and consent to participate
: The study protocol was approved in December 2008 by Columbia University’s Institutional Review Board (New York, USA) and Al-Quds University (Jerusalem, Palestine). Written informed consent and assent were obtained from sixth and ninth grade students as well as their parents.
: Not applicable.
: The authors declare that they have no competing interests.