%0 Journal Article %T Thebesian valve: the cause of unsuccessful retrograde coronary sinus cannulation %A Holda, M.K. %A Koziej, M. %A Klimek-Piotrowska, W. %J The Anatolian Journal of Cardiology %D 2015 %V 15 %P 5008-5009 %R 10.5152/akd.2015.5952