@misc{indiciaee33fb14f4798,
  title = {Absorption and sustained release theophylline.},
  author = {S Pedersen},
  year = {1983},
  doi = {10.1016/s0140-6736(83)90478-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/6138523/},
  note = {Source identifier: 6138523}
}