@article{doi:, author = {Çelebi, Ahmet and Ahunbay, Gülay}, title = {Letter To The Editor}, journal = {Turk Kardiyol Dern Ars}, volume = {27}, number = {6}, pages = {445-446}, year = {1999}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }