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Authors
Babiker, Awab Omer
Kaddam, Lamis AbdelGadir http://orcid.org/0000-0002-1083-4514
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Funding
Funding for this research was provided by:
Alneelain University
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Article History
Received: 8 February 2018
Accepted: 25 June 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: The study was approved by the Central Institutional Review Board at Al -Neelain University. Also, written informed consent was obtained from each participant prior to enrolment.
: Principal investigator obtained informed consent from each participant to publish the data without breaching confidentiality.
: We declare no conflict of interest.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
