@misc{indiciaefaf7e2253303,
  title = {Three-dimensional model-free experimental error correction of protein crystal diffraction data with free-R test.},
  author = {Zheng Qing Fu},
  year = {2005},
  doi = {10.1107/s0907444905033494},
  url = {https://pubmed.ncbi.nlm.nih.gov/16301798/},
  note = {Source identifier: 16301798}
}