@misc{indiciaea7f94c240e74,
  title = {Polarity in vitro.},
  author = {M R Capecchi},
  year = {1967},
  doi = {10.1016/0022-2836(67)90254-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/6077936/},
  note = {Source identifier: 6077936}
}