@misc{indiciae3b80c3aaad32,
  title = {Experiences with planography.},
  author = {B POLLAK},
  year = {1953},
  doi = {10.1378/chest.24.6.663},
  url = {https://pubmed.ncbi.nlm.nih.gov/13107564/},
  note = {Source identifier: 13107564}
}