@misc{indiciaeb21dc3619a6d,
  title = {Communication between cells of different type.},
  author = {W Michalke and W R Loewenstein},
  year = {1971},
  doi = {10.1038/232121b0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4933243/},
  note = {Source identifier: 4933243}
}