@misc{indiciae7dacacec1697,
  title = {Human multidrug-resistant cell lines: increased mdr1 expression can precede gene amplification.},
  author = {D W Shen and A Fojo and J E Chin and I B Roninson and N Richert and I Pastan and M M Gottesman},
  year = {1986},
  doi = {10.1126/science.3457471},
  url = {https://pubmed.ncbi.nlm.nih.gov/3457471/},
  note = {Source identifier: 3457471}
}