@misc{indiciaec1cd7fd61f89,
  title = {Classification of positive inotropic agents.},
  author = {A M Feldman},
  year = {1993},
  doi = {10.1016/0735-1097(93)90441-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/7691913/},
  note = {Source identifier: 7691913}
}