@article{doi:, author = {Aytekin, Vedat}, title = {Is package pricing in favor of patients or institutions?}, journal = {Turk Kardiyol Dern Ars}, volume = {33}, number = {5}, pages = {281-283}, year = {2005}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }