Coltart, D J Plasma propranolol levels in the quaniitative assessment of beta-adrenergic blockade in man. [electronic resource] - British medical journal Sep 1970 - 731-4 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0007-1447 Standard No.: 10.1136/bmj.3.5725.731 doi Subjects--Topical Terms: Administration, OralAdrenergic beta-Antagonists--therapeutic useAdultHeart Rate--drug effectsHumansInjections, IntravenousIsoproterenolMalePhysical ExertionPropranolol--administration & dosageTachycardia--chemically induced