@misc{indiciae021c59129c51,
  title = {The Denver scale.},
  author = {O P Gray},
  year = {1972},
  doi = {10.1111/j.1469-8749.1972.tb02654.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4269128/},
  note = {Source identifier: 4269128}
}