Exercise testing in the clinical management of patients affected by pulmonary arterial hypertension. Eur Cardiovasc Prev Rehabil 7 November Nov 2011 14 years ago Paolillo S, Farina S, Bussotti M, Iorio A, Filardi PP, Piepoli MF, Agostoni P. http://www.ncbi.nlm.nih.gov/pubmed/21997256