@misc{indiciae185a80c55581,
  title = {Changes in mental functions after open-heart operations. Methodolgical aspects.},
  author = {M Gruvstad and M Hane},
  year = {1976},
  doi = {10.3109/14017437609167796},
  url = {https://pubmed.ncbi.nlm.nih.gov/1006220/},
  note = {Source identifier: 1006220}
}