@misc{indiciaeffa484977489,
  title = {Muscarinic receptors--characterization, coupling and function.},
  author = {M P Caulfield},
  year = {1993},
  doi = {10.1016/0163-7258(93)90027-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/7504306/},
  note = {Source identifier: 7504306}
}