Links
[1] https://www.ctsnet.org/user/login?destination=user/530831
[2] https://www.ctsnet.org/print/home/kenhasslerdo
[3] https://www.ctsnet.org/article/tips-and-tricks-updated-y-incision-aortic-annular-enlargement
[4] https://www.ctsnet.org/articles/kenhasslerdo
[5] https://www.ctsnet.org/society/ctsnet