@misc{indiciaea3df1b5d72b5,
  title = {Missing values ignored.},
  author = {S Sayers and J Powers},
  year = {1997},
  doi = {10.1111/j.1440-1754.1997.tb01026.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9145367/},
  note = {Source identifier: 9145367}
}