@article{Youk2022_13,
  title = {Annual Report of the Korean External Quality Assessment Service on Transfusion Medicine (2021)},
  author = {Youk, Hee-Jeong and Kim, Jin Seok and Yang, John Jeongseok and Kim, Hyungsuk and Ko, Dae-Hyun},
  journal = {Journal of Laboratory Medicine and Quality Assurance},
  year = {2022},
  doi = {10.15263/jlmqa.2022.44.1.10}
}