@misc{indiciae2de0e58d4464,
  title = {Beta endorphin: a factor in "fun run" collapse?},
  author = {G Dale and J A Fleetwood and A Weddell and R D Ellis},
  year = {1987},
  doi = {10.1136/bmj.294.6578.1004},
  url = {https://pubmed.ncbi.nlm.nih.gov/2960416/},
  note = {Source identifier: 2960416}
}