Cited 72 times since 2006 (4 per year) source: EuropePMC Journal of the American College of Cardiology, Volume 47, Issue 8, 29 5 2006, Pages 1732-1733 Impaired stroke volume response to exercise in pulmonary arterial hypertension. Holverda S, Gan CT, Marcus JT, Postmus PE, Boonstra A, Vonk-Noordegraaf A