De Marco T, Chatterjee K. Phosphodiesterase inhibitors in refractory heart failure: Bridge to ß-blockade? J Am Coll Cardiol.. 1998; 6(31):1341-3. 1998 https://researcherprofiles.org/profile/1333457 De Marco T, Chatterjee K. Phosphodiesterase inhibitors in refractory heart failure: Bridge to ß-blockade? J Am Coll Cardiol.