@misc{indiciaef6c4e2aec30f,
  title = {Chimaeras and cell lineage in development.},
  author = {J H Lewis and D Summerbell and L Wolpert},
  year = {1972},
  doi = {10.1038/239276a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4562031/},
  note = {Source identifier: 4562031}
}