@misc{indiciaed087319947a2,
  title = {Column-switching solid-phase trace-enrichment high-performance liquid chromatographic method for measurement of buprenorphine and norbuprenorphine in human plasma and urine by electrochemical detection.},
  author = {E Schleyer and R Lohmann and C Rolf and A Gralow and C C Kaufmann and M Unterhalt and W Hiddemann},
  year = {1993},
  doi = {10.1016/0378-4347(93)80319-y},
  url = {https://pubmed.ncbi.nlm.nih.gov/8314940/},
  note = {Source identifier: 8314940}
}