@misc{indiciaea7102f6b31b2,
  title = {Antineoplastic agents. 34. Helenium autumnale L.},
  author = {G R Pettit and J C Budzinski and G M Cragg and P Brown and L D Johnston},
  year = {1974},
  doi = {10.1021/jm00255a024},
  url = {https://pubmed.ncbi.nlm.nih.gov/4412057/},
  note = {Source identifier: 4412057}
}