@misc{indiciae35e0c41db510,
  title = {The variation phenomenon in 1994.},
  author = {D Blumenthal},
  year = {1994},
  doi = {10.1056/nejm199410133311511},
  url = {https://pubmed.ncbi.nlm.nih.gov/8084342/},
  note = {Source identifier: 8084342}
}