Figure 2From: ULTIMATE-SHF trial (UdenafiL Therapy to Improve symptoMAtology, exercise Tolerance and hEmodynamics in patients with chronic systolic heart failure): study protocol for a randomized, placebo-controlled, double-blind trial Study visit schedule of the ULTIMATE-SHF trial. bid, twice daily; CPET, cardiopulmonary exercise test; Echo, echocardiography; Exercise Echo, exercise echocardiography; NYHA, New York Heart Association.Back to article page