@misc{indiciaeec52b4165d9e,
  title = {A visit to the Soviet Union.},
  author = {C D Calnan and B Portnoy and C W Marsden},
  year = {1973},
  doi = {10.1111/j.1365-2133.1973.tb02964.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4726898/},
  note = {Source identifier: 4726898}
}