@misc{indiciae014c4c245807,
  title = {Serum-digoxin concentrations with a new digoxin derivative, beta-methyl-digoxin.},
  author = {G Härtel and V Manninen and J Melin and A Apajalahti},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4748756/},
  note = {Source identifier: 4748756}
}