@misc{indiciaeb1775ae08625,
  title = {The gradient tissue culture method.},
  author = {E E OSGOOD and M L KRIPPAEHNE},
  year = {1955},
  doi = {10.1016/0014-4827(55)90165-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/13241514/},
  note = {Source identifier: 13241514}
}