Links
[1] https://www.ctsnet.org/user/login?destination=user/451174
[2] https://www.ctsnet.org/print/home/ebeckmann
[3] https://www.ctsnet.org/article/different-challenges-different-needs-cardiac-surgery-and-elderly-patient
[4] https://www.ctsnet.org/articles/ebeckmann
[5] https://www.ctsnet.org/society/ctsnet
[6] https://www.ctsnet.org/society/eacts