Links[1] http://www.rrze.uni-erlangen.de/docs/FAU/fakultaet/med/kli/kiu/herz/ [2] https://www.ctsnet.org/user/login?destination=user/402365 [3] https://www.ctsnet.org/print/home/jvon-der-emde [4] https://www.ctsnet.org/society/ctsnet [5] https://www.ctsnet.org/society/sts