Acute effects of conjugated estrogens on coronary blood flow response to acetylcholine in men. - Blumenthal,R.S.; Heldman,A.W.; Brinker,J.A.; Resar,J.R.; Coombs,V.; Gloth,S.T.; Gerstenblith,G.; Reis,S.T. (Am J Cardiol, 1997)