Funding for this research was provided by:
Norges Forskningsråd (project number 234457)
Haukeland Universitetssjukehus (Not applicable)
Received: 9 December 2018
Accepted: 26 April 2019
First Online: 16 May 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from the Regional Committee for Medical and Health Research Ethics, Western-Norway (2014/46/REK vest) and the Zanzibar Medical Research and Ethics Committee (ZAMREC/0001/MAY/014). All study participants signed an informed written consent. In patients < 18 years, the written consent was signed by the parent/guardian, in addition, patients ≥7 years had to sign the consent form.
: Not applicable.
: The authors declare that they have no competing interests.
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