@misc{indiciae5052ac0e2de5,
  title = {Open remarks on artificial openings.},
  author = {M M Schuster},
  year = {1972},
  doi = {10.1056/nejm197204202861611},
  url = {https://pubmed.ncbi.nlm.nih.gov/5061078/},
  note = {Source identifier: 5061078}
}