@misc{indiciae2dcdfa7f05b3,
  title = {Multiple forms of dihydrofolate reductase.},
  author = {G P Mell and M Martelli and J Kirchner and F M Huennekens},
  year = {1968},
  doi = {10.1016/0006-291x(68)90257-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5696508/},
  note = {Source identifier: 5696508}
}