@misc{indiciae9dacb1db4481,
  title = {Positive selection vectors based on xylose utilization suppression.},
  author = {P E Stevis and N W Ho},
  year = {1987},
  doi = {10.1016/0378-1119(87)90249-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/3305172/},
  note = {Source identifier: 3305172}
}