@misc{indiciaec7d43fb10420,
  title = {Brief notes. Methods for locating the "missing patients" in long-term follow-up studies.},
  author = {S M Chung},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5114709/},
  note = {Source identifier: 5114709}
}