Links[1] https://www.ctsnet.org/user/login?destination=user/533635 [2] https://www.ctsnet.org/print/home/varserg [3] https://www.ctsnet.org/article/re-commando-procedure-recurrent-endocarditis [4] https://www.ctsnet.org/articles/varserg [5] https://www.ctsnet.org/society/ctsnet