@misc{indiciae357ce467e901,
  title = {Beating heart surgery: does it make a difference?},
  author = {Michael J Mack},
  year = {2003},
  doi = {10.1111/j.1541-9215.2004.02107.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/15815135/},
  note = {Source identifier: 15815135}
}