@misc{indiciaefe1f852708b2,
  title = {Differences in volunteer and randomly acquired samples.},
  author = {M E Wewers and K Ahijevych},
  year = {1990},
  doi = {10.1016/s0897-1897(05)80140-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/2252405/},
  note = {Source identifier: 2252405}
}