@misc{indiciaeef278fcae08f,
  title = {Hypertension: the problem patient.},
  author = {R F Grenfell},
  year = {1981},
  doi = {10.1177/000331978103200602},
  url = {https://pubmed.ncbi.nlm.nih.gov/6112937/},
  note = {Source identifier: 6112937}
}