Yakubu, Ibrahim http://orcid.org/0000-0002-7898-7162
Garmaroudi, Gholamreza http://orcid.org/0000-0001-7449-227X
Sadeghi, Roya http://orcid.org/0000-0002-4290-0950
Tol, Azar http://orcid.org/0000-0002-9225-941X
Yekaninejad, Mir Saeed http://orcid.org/0000-0003-3648-5276
Yidana, Adadow http://orcid.org/0000-0003-4019-6071
Article History
Received: 4 December 2018
Accepted: 29 July 2019
First Online: 15 August 2019
Ethics approval and consent to participate
: Ethics approval was obtained from the research ethical team of Tehran University of Medical Sciences (IR.TUM.SPH.1396.4089) and Ghana Health Service Ethics Review Committee (GHS.ERC.020.03.18) The Northern Regional Education Directorate-Ghana, as well as the Heads of participating institutions, granted Permission for the study. Written consent from parents and assent from pupils were obtained prior to data collection. This study was also registered at the Clinical trials registry with registration number (NCT03384251).
: Not applicable (we have not included names, images or videos of participants that need obtaining consent).
: The authors declare that they have no competing interests.