Pulmonary Circulation's main goal is to encourage basic, translational, and clinical research by investigators, physician-scientists, and clinicans, in the hope of increasing survival rates for pulmonary hypertension and other pulmonary vascular diseases worldwide, and developing new therapeutic approaches for the diseases. Freely available online, Pulmonary Circulation allows diverse knowledge of research, techniques, and case studies to reach a wide readership of specialists in order to improve patient care and treatment outcomes.