@misc{indiciae1b8e1f05ea46,
  title = {Sustained-release theophylline preparations.},
  author = {M M Weinberger},
  year = {1990},
  doi = {10.1016/0091-6749(90)90171-y},
  url = {https://pubmed.ncbi.nlm.nih.gov/2303654/},
  note = {Source identifier: 2303654}
}