Rahamtalla, Fayza A.
Abdalla, Mohammed S. M.
Mudawi, Salma B. M.
Kheir Elsid, Mohammed A. H.
Shammat, Iman M.
Article History
Received: 25 September 2017
Accepted: 21 March 2018
First Online: 6 April 2018
Compliance with ethical standards
:
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all4966 individual participants included in the study.