1 UMIT - Private University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria. Electronic address: elske.ammenwerth@umit-tirol.at.
2 Poznan University of Technology, Poznan, Poland. Electronic address: szymon.wilk@cs.put.poznan.pl.
3 Zhejiang University College of Computer Science and Technology, Hangzhou, China. Electronic address: zhengxinghuang@zju.edu.cn.