@misc{indiciaefd1760400b04,
  title = {Improved clean-up method for the enkephalins in plasma using immunoaffinity chromatography.},
  author = {T L Hendrickson and G S Wilson},
  year = {1994},
  doi = {10.1016/0378-4347(93)e0435-s},
  url = {https://pubmed.ncbi.nlm.nih.gov/8205242/},
  note = {Source identifier: 8205242}
}