A. SHARMA; A. R. KANSAL. Brief Overview on Sustained Release Theophylline (SRT): An Older Drug for COPD . Novel Aspects on Pharmaceutical Research Vol. 3, [S. l.], p. 109–112, 2023. DOI: 10.9734/bpi/napr/v3/3726E. Disponível em: https://stm.bookpi.org/NAPR-V3/article/view/10886. Acesso em: 3 jun. 2026.