@misc{indiciae6fe8ab9fce9f,
  title = {Letter: Supraregional assay service.},
  author = {R P Ekins},
  year = {1976},
  doi = {10.1016/s0140-6736(76)93110-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/56552/},
  note = {Source identifier: 56552}
}