@misc{indiciae8642594ce061,
  title = {The stem cell challenge.},
  author = {Robert Lanza and Nadia Rosenthal},
  year = {2004},
  doi = {10.1038/scientificamerican0604-92},
  url = {https://pubmed.ncbi.nlm.nih.gov/15195398/},
  note = {Source identifier: 15195398}
}