@misc{indiciaeb405d8ab8665,
  title = {Simple iris retractor for use in cryoextraction.},
  author = {P Kristensen},
  year = {1968},
  doi = {10.1016/0002-9394(68)93601-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/5636031/},
  note = {Source identifier: 5636031}
}