@misc{indiciae0488f2c77a18,
  title = {Observer variation in lower limb venography.},
  author = {E Sauerbrei and J G Thomson and M S McLachlan and J Musial},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7217162/},
  note = {Source identifier: 7217162}
}