1. Inhaled prostacyclin is safe, effective, and affordable in patients with pulmonary hypertension, right heart dysfunction, and refractory hypoxemia after cardiothoracic surgery 
Charl J. De Wet, MBChB, David G. Affleck, MD, Eric Jacobsohn, MBChB, MHPE, FRCPC, Michael S. Avidan, MBBCh, Heidi Tymkew, MHS, Laureen L. Hill, MD, Paul B. Zanaboni, MD, PhD, Nader Moazami, MD, Jennifer R. Smith, PharmD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 127, Issue 4, Pages (April 2004)
DOI: /j.jtcvs

2. Figure 1
Effect of iPGI2 on MPAP, MAP, the MPAP/MAP ratio, and cardiac index for all patients: P < The smaller number of patients at the 4- to 6-hour time periods are compared with their own baseline. The numbers at this time period are smaller because some of the original patients were no longer receiving iPGI2 or had incomplete data.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )