| Affiliation: | 1. University of Alabama at Birmingham, , Birmingham, AL, USA;2. Duke University Medical Center, , Durham, NC, USA;3. Baylor College of Medicine, , Houston, TX, USA;4. Allegheny General Hospital, , Pittsburgh, PA, USA;5. Massachusetts General Hospital, , Boston, MA, USA;6. Columbia Presbyterian Medical Center, , New York, NY, USA;7. David Geffen UCLA School of Medicine, Greater Los Angeles VA Healthcare System, , Los Angeles, CA, USA;8. University of Rochester Medical Center, , Rochester, NY, USA;9. United Therapeutics Corp., , Research Triangle Park, NC, USA;10. UCSD Medical Center, , San Diego, CA, USA |
