@misc{indiciaeac087f016f62,
  title = {Nutritional ergogenic aids: caffeine.},
  author = {P M Clarkson},
  year = {1993},
  doi = {10.1123/ijsn.3.1.103},
  url = {https://pubmed.ncbi.nlm.nih.gov/8499934/},
  note = {Source identifier: 8499934}
}