@misc{indiciaee260f1869e32,
  title = {A method for securing thymineless mutants from strains of E. coli.},
  author = {T OKADA and K YANAGISAWA and F J RYAN},
  year = {1961},
  doi = {10.1007/bf00890061},
  url = {https://pubmed.ncbi.nlm.nih.gov/14481497/},
  note = {Source identifier: 14481497}
}