@misc{indiciae88410b0ea097,
  title = {[2-dimensional sector echocardiography].},
  author = {E Grube and H Simon},
  year = {1979},
  doi = {10.1055/s-0028-1103946},
  url = {https://pubmed.ncbi.nlm.nih.gov/436630/},
  note = {Source identifier: 436630}
}