%0 Journal Article %T Comments on Postma et al’s ‘The Effect of Caffeine on Renal Vein Renin Concentration in Patients With Renal Arterial Disease’ %A Jackson, Edwin K. %J American Journal of Hypertension %V 5 %N 6_Pt_1 %P 421-422 %@ 0895-7061 %D 1992-06-01 %I Oxford University Press %~ DeepDyve