Funding for this research was provided by:
Stichting Vriendenfonds, Albert Schweitzer Hospital
Received: 15 February 2019
Accepted: 24 April 2019
First Online: 28 May 2019
Ethics approval and consent to participate
: This study was approved by the institutional review board of the Albert Schweitzer hospital (WOAC) and was conducted according to the Declaration of Helsinki. All participants provided written informed consent.
: The content of the manuscript has been read and approved for submission and publication by all authors.
: The authors declare that they have no competing interests.
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