@misc{indiciae147025acdd04,
  title = {Polyribonucleotides containing a phosphorothioate backbone.},
  author = {F Eckstein and H Gindl},
  year = {1970},
  doi = {10.1111/j.1432-1033.1970.tb00961.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5444162/},
  note = {Source identifier: 5444162}
}