Links
[1] https://spb-cts.freelock.com/user/login?destination=user/473543
[2] https://spb-cts.freelock.com/print/home/mzellinger
[3] https://spb-cts.freelock.com/article/protocol-cardiac-surgery-transfusion-triggers
[4] https://spb-cts.freelock.com/articles/mzellinger
[5] https://spb-cts.freelock.com/society/ctsnet