@article{şahin_2017, 
  title={Item analyses of 2016 written exam of Turkish Society of Cardiovascular Surgery Proficiency Board}, 
  volume={25}, 
  DOI={10.5606/tgkdc.dergisi.2017.14513}, 
  publisher={Baycinar Tibbi Yayincilik}, 
  author={Şahin}, 
  year={2017}, 
  month={Nov}
  }