Funding for this research was provided by:
Pan Institution Network for Global Health
Text and Data Mining valid from 2018-06-19
Received: 31 May 2017
Accepted: 9 May 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: The study approval was obtained (EK-Antrag #282/16 (focus group discussion) and #306/26 (evaluated pilot trial)) from the University of Freiburg Ethics Committee.
: The written consent of participants for the use of the anonymized data for research and publication was acquired.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.