Alan L Hinderliter, MD a, ⁎, Park W Willis, MD a, Walker Long, MD b, William R Clarke, MD c, David Ralph, MD c, Edgar J Caldwell, MD d, William Williams, MD d, Neil A Ettinger, MD e, Nicholas S Hill, MD f, Warren R Summer, MD g, Bennett de Boisblanc, MD g, Gary Koch, PhD h, Shu Li, MS h, Linda M Clayton i : PharmD, Maria M Jöbsis, BA i, James W Crow, PhD j
for the PPH Study Group
a Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
c Department of Medicine, University of Washington, Seattle, Washington, USA
d Department of Medicine, Maine Medical Center, Portland, Maine, USA
e Department of Medicine, Washington University, St. Louis, Missouri, USA
f Department of Medicine, Rhode Island Hospitals, Providence, Rhode Island, USA
g Department of Medicine, Louisiana State Medical Center, New Orleans, Louisiana, USA
b Department of Pediatrics, University of North Carolina, Chapel Hill, North Carolina USA
h Department of Biostatistics, University of North Carolina, Chapel Hill, North Carolina USA
i Glaxo Wellcome Inc., Research Triangle Park, North Carolina USA
j United Therapeutics, Inc., Chapel Hill, North Carolina, USA