@misc{indiciae45d1bce06993,
  title = {A simple device for improving patient comfort.},
  author = {M J Douglas and P L Ross and E C Olsen},
  year = {1989},
  doi = {10.1007/bf03010898},
  url = {https://pubmed.ncbi.nlm.nih.gov/2521579/},
  note = {Source identifier: 2521579}
}