@misc{indiciae4d9e57561edb,
  title = {Diffusion chamber colony-forming unit (CFU-d): a primitive stem cell.},
  author = {E Niskanen and C Chatelain and M Symann},
  year = {1989},
  doi = {10.1002/stem.5530070602},
  url = {https://pubmed.ncbi.nlm.nih.gov/2681440/},
  note = {Source identifier: 2681440}
}