@misc{indiciaed4e4f48264bb,
  title = {Amitriptyline and sputum viscosity.},
  author = {R M Baillie},
  year = {1967},
  doi = {10.1016/s0140-6736(67)90207-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4143740/},
  note = {Source identifier: 4143740}
}