@misc{indiciae22b187c023da,
  title = {A newly isolated antispasmodic--butylidenephthalide.},
  author = {W C Ko},
  year = {1980},
  doi = {10.1254/jjp.30.85},
  url = {https://pubmed.ncbi.nlm.nih.gov/7401411/},
  note = {Source identifier: 7401411}
}