the 2nd study was a placebo controlled trial on the effects of atenolol ( 100 mg/day ) on haemodynamics at the calf carried out for 8 weeks in patients suffering from essential to severe moderate hypertension , part of which aged over 65 years and affected by arteriosclerosis obliterans of the lower limbs , stage i and ii according to fontaine 's classification .
C0004147
atenolol
C0020538
hypertension