M. Sharif, B. T. Khan, S. Bakhtiar, and M. Sharif, “IPRATROPIUM ATTENUATES INSULIN INDUCED TRACHEAL SMOOTH MUSCLE CONTRACTION OF GUINEA PIG IN VITRO: Ipratropium”, Pak Armed Forces Med J, vol. 64, no. 1, pp. 114–118, Mar. 2014, Accessed: Aug. 23, 2025. [Online]. Available: https://www.pafmj.org/PAFMJ/article/view/571