@misc{indiciae5c2f6c274ab1,
  title = {[Methyl-D3]2hypericin as internal standard for quantification in human plasma.},
  author = {Georgios Piperopoulos and Andrea Kiehne and Arnd Ingendoh and Klaus-Peter Zeller},
  year = {2003},
  doi = {10.1007/s00216-003-1780-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12664172/},
  note = {Source identifier: 12664172}
}