@misc{indiciaeda232e824a81, title = {[Delayed-action matrices based on polymers whose solubility varies with pH].}, author = {C Brossard and D Lefort des Ylouses and D Duchène and J T Carstensen}, year = {1982}, url = {https://pubmed.ncbi.nlm.nih.gov/7134220/}, note = {Source identifier: 7134220} }