Links[1] https://www.ctsnet.org/user/login?destination=user/406032 [2] https://www.ctsnet.org/print/home/gzattera [3] https://www.ctsnet.org/article/biological-bentall-procedure [4] https://www.ctsnet.org/articles/gzattera [5] https://www.ctsnet.org/society/ctsnet