@misc{indiciae378ffac871bc,
  title = {Beta Blocker Heart Attack Trial: design features.},
  year = {1981},
  doi = {10.1016/0197-2456(81)90018-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6120793/},
  note = {Source identifier: 6120793}
}