TY  - RPRT
TI  - Slow-release theophylline: do not substitute.
AU  - L Hendeles
PY  - 1989
DO  - 10.1016/s0160-3450(15)31831-6
UR  - https://pubmed.ncbi.nlm.nih.gov/2711984/
ID  - 2711984
ER  -