Links[1] https://www.ctsnet.org/user/login?destination=user/446426 [2] https://www.ctsnet.org/print/home/bpfannmueller [3] https://www.ctsnet.org/article/mitral-annular-sizing-mitral-valve-repair-surgery [4] https://www.ctsnet.org/articles/bpfannmueller [5] https://www.ctsnet.org/society/ctsnet