Sultan, Wasim I. M. http://orcid.org/0000-0002-3731-579X
Crispim, José
Article History
Received: 23 March 2018
Accepted: 23 May 2018
First Online: 29 May 2018
Ethics approval and consent to participate
: The research got ethical approval from the Palestinian Ministry of Health.
: The authors declare that they have no competing interests.
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