@misc{indiciaea317bfbf942a,
  title = {Thioxanthones: structural differences between lucanthone and its N-methyl derivative.},
  author = {R Zilversmit},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5418235/},
  note = {Source identifier: 5418235}
}