@misc{indiciae5026ef2aaa87,
  title = {Analytical methods for quantitation of methylxanthines.},
  author = {W J Hurst and R A Martin and S M Tarka},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/6396643/},
  note = {Source identifier: 6396643}
}