@misc{indiciaecc23eeee9c03,
  title = {[Experiences and problems with aortic valve prosthesis during 14 years].},
  author = {W Hügel and L Brunner and W Klinner},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/962284/},
  note = {Source identifier: 962284}
}