@misc{indiciaea5324284092e,
  title = {Semisynthetic penicillins.},
  author = {G N Rolinson and R Sutherland},
  year = {1973},
  doi = {10.1016/s1054-3589(08)60458-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4201891/},
  note = {Source identifier: 4201891}
}