@article{doi:,
author = {Demirkan, Burcu and Güray, Yeşim and Türkvatan, Aysel and Tüfekçioğlu, Omaç},
title = {A rare cause of aortic insufficiency:  quadricuspid aortic valve},
journal = {Turk Kardiyol Dern Ars},
volume = {37},
number = {4},
pages = {260-262},
year = {2009},
doi = {},
note ={PMID: 19717960},

URL = {https://dx.doi.org/},
eprint = {https://dx.doi.org/}
}