@misc{indiciae3634e686625c,
  title = {[Classification of acquired aortic stenosis (based on electrocardiographic study data)].},
  author = {E N Meshalkin and I V Pokrovskaia and P F Kakostikov and M P Odintsova and G G Chasovskikh},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/159969/},
  note = {Source identifier: 159969}
}