@misc{indiciae3a57b6413880,
  title = {Changing potency by spontaneous fusion.},
  author = {Qi-Long Ying and Jennifer Nichols and Edward P Evans and Austin G Smith},
  year = {2002},
  doi = {10.1038/nature729},
  url = {https://pubmed.ncbi.nlm.nih.gov/11932748/},
  note = {Source identifier: 11932748}
}