we used transesophageal real-time two-dimensional doppler echography ( te2dd ) to assess the effects of propranolol ( n = 18 , 6 mg each ) and nitroglycerin ( n = 18 , 0.5 mg each ) on blood flow in the intercostal veins , azygos vein , thoracic aorta , and esophagogastric varices .
C0033497
propranolol
C0014849
esophagogastric varices