@misc{indiciae73204c9e1257,
  title = {Letter: Contaminated vacuum tubes.},
  author = {W A McLeish and E N Corrigan and R H Elder and J C Westwood},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/1122435/},
  note = {Source identifier: 1122435}
}