@misc{indiciae89935489ec7d,
  title = {Slow-release theophylline preparations.},
  author = {M Weinberger},
  year = {1979},
  doi = {10.1136/adc.54.7.565},
  url = {https://pubmed.ncbi.nlm.nih.gov/485205/},
  note = {Source identifier: 485205}
}