@misc{indiciaebf35dbf45e9b,
  title = {The before/after study design in transfusion medicine: methodologic considerations.},
  author = {Dean Fergusson and Paul Hebert and Stan Shapiro},
  year = {2002},
  doi = {10.1053/tmrv.2002.35211},
  url = {https://pubmed.ncbi.nlm.nih.gov/12415515/},
  note = {Source identifier: 12415515}
}