@misc{indiciaef13abf1d6642,
  title = {Letter: Pleural effusion.},
  author = {D Davies and W H Smith},
  year = {1975},
  doi = {10.1136/bmj.3.5982.543-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/1164627/},
  note = {Source identifier: 1164627}
}