@misc{indiciae399d5588469e,
  title = {Letter: Cross-sensitivity between practolol and other beta-blockers?},
  author = {F J Zacharias},
  year = {1976},
  doi = {10.1136/bmj.1.6019.1213-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/5172/},
  note = {Source identifier: 5172}
}