@misc{indiciae8016964d446e,
  title = {Letter: Biofeedback and anxiety.},
  author = {B L Frankel},
  year = {1975},
  doi = {10.1176/ajp.132.11.aj132111223},
  url = {https://pubmed.ncbi.nlm.nih.gov/1101713/},
  note = {Source identifier: 1101713}
}