Shaukat, Asma, Sumbal Tariq, Mahjabeen Sharif, and Muzammil Hasan Najmi. 2015. “EFFECT OF NEBIVOLOL ON TONE OF TRACHEAL MUSCLE OF GUINEA PIG”. Journal of Ayub Medical College Abbottabad 27 (3):527-29. https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/294.