CHUGHTAT, R S, S HASSAN, N A MALIK, and J I CHAUDHRY. “The Adrenergic Blocking Activity of Pure Beta Blockers in Comparison With Labetalol (α and β Blockers)”. Annals of King Edward Medical University 6, no. 1 (December 2, 2017). Accessed May 2, 2024. https://annalskemu.org/journal/index.php/annals/article/view/1990.