@misc{indiciae1784add786b3,
  title = {Beta-blockade in chronic heart failure.},
  author = {R A De Boer and D J Van Veldhuisen},
  year = {2001},
  doi = {10.1161/01.cir.103.23.e118},
  url = {https://pubmed.ncbi.nlm.nih.gov/11401950/},
  note = {Source identifier: 11401950}
}