@misc{indiciaeffae3d662e9c,
  title = {On clinical efficacy: why biofeedback does--and does not--work.},
  author = {S J Middaugh},
  year = {1990},
  doi = {10.1007/bf01011105},
  url = {https://pubmed.ncbi.nlm.nih.gov/2223889/},
  note = {Source identifier: 2223889}
}