@misc{indiciaef01fbca4b760,
  title = {Modified sharp method: factors influencing reproducibility and variability.},
  author = {H L Swinkels and R F Laan and M A van 't Hof and D M van der Heijde and N de Vries and P L van Riel},
  year = {2001},
  doi = {10.1053/sarh.2001.28304},
  url = {https://pubmed.ncbi.nlm.nih.gov/11740798/},
  note = {Source identifier: 11740798}
}