@article{doi:, author = {Hacıyev, Ramin and Ünlü, Serkan and Yalçın, Mehmet Rıdvan and Taçoy, Gülten and Çengel, Atiye}, title = {Letter to the Editor}, journal = {Turk Kardiyol Dern Ars}, volume = {47}, number = {3}, pages = {247-247}, year = {2019}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }