@misc{indiciaeaa2553c7a385,
  title = {Morphine: radioimmunoassay.},
  author = {S Spector and C W Parker},
  year = {1970},
  doi = {10.1126/science.168.3937.1347},
  url = {https://pubmed.ncbi.nlm.nih.gov/5444264/},
  note = {Source identifier: 5444264}
}