@misc{indiciaed7fa74e140e9,
  title = {An introduction to biofeedback.},
  author = {Martin H Astor},
  year = {1977},
  doi = {10.1111/j.1939-0025.1977.tb01272.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/920786/},
  note = {Source identifier: 920786}
}