Links
[1] https://www.ctsnet.org/user/login?destination=user/530180
[2] https://www.ctsnet.org/print/home/guto-duncan
[3] https://www.ctsnet.org/article/correction-complex-aorta-disease-using-frozen-elephant-trunk-and-bentall%E2%80%99s-procedures
[4] https://www.ctsnet.org/articles/Guto%20Duncan
[5] https://www.ctsnet.org/society/ctsnet