@misc{indiciaecb4c712383a1,
  title = {Gene targeting. How efficient can you get?},
  author = {M Capecchi},
  year = {1990},
  doi = {10.1038/348109a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/2234072/},
  note = {Source identifier: 2234072}
}