Funding for this research was provided by:
Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg (IN-1150438)
Text and Data Mining valid from 2019-05-08
Received: 19 October 2018
Accepted: 24 April 2019
First Online: 8 May 2019
Ethics approval and consent to participate
: The respondents agreed to participate in the study and provided their written informed consent. Ethical clearance was obtained from the Ethical Clearance Committee, Faculty of Medicine, Heidelberg University, Germany (S-356/2015) and Universitas Diponegoro–Dr. Kariadi Hospital, Indonesia (No.31/EC/FK-RSDK/2016).
: Not applicable.
: The authors declare that they have no competing interests.
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