Akram, M. F., Nasiruddin, M., Ahmad, Z., & Khan, R. A. (2017). Comparative evaluation of doxofylline and theophylline in patients of mild bronchial asthma. International Journal of Basic & Clinical Pharmacology, 2(4), 386–391. Retrieved from https://www.ijbcp.com/index.php/ijbcp/article/view/1286