@misc{indiciaeb3db6c622371,
  title = {Green sputum.},
  author = {A J ROBERTSON},
  year = {1952},
  doi = {10.1016/s0140-6736(52)90988-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/14889738/},
  note = {Source identifier: 14889738}
}