@misc{indiciaec195292c997c,
  title = {Growth-promoting substances: a method for laboratory evaluation.},
  author = {M F PAUL and R C BENDER and D HUMPHREY},
  year = {1961},
  url = {https://pubmed.ncbi.nlm.nih.gov/13733451/},
  note = {Source identifier: 13733451}
}