@misc{indiciae3dbc72028a7d,
  title = {Venous ulcers.},
  author = {S Allen},
  year = {1990},
  doi = {10.1136/bmj.300.6728.826},
  url = {https://pubmed.ncbi.nlm.nih.gov/2337693/},
  note = {Source identifier: 2337693}
}