@misc{indiciae362266ba4d16,
  title = {Panic disorder subtypes: differential responses to CO2 challenge.},
  author = {B Biber and T Alkin},
  year = {1999},
  doi = {10.1176/ajp.156.5.739},
  url = {https://pubmed.ncbi.nlm.nih.gov/10327907/},
  note = {Source identifier: 10327907}
}