@misc{indiciae98af28a1c932,
  title = {Generic solid phase extraction-liquid chromatography-tandem mass spectrometry method for fast determination of drugs in biological fluids.},
  author = {Anniek Schellen and Bert Ooms and Dick van de Lagemaat and Rob Vreeken and William D van Dongen},
  year = {2003},
  doi = {10.1016/s1570-0232(02)01013-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/12705965/},
  note = {Source identifier: 12705965}
}