Boston University Medical Center, Boston, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
University of California, San Diego, San Diego, California, United States
Northwestern University, Evanston, Illinois, United States
Lenox Hill Hospital, New York City, New York, United States
Boston Medical Center, Boston, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
City Drug Addiction Center, St. Petersburg, Russian Federation
Pavlov State Medical University and Botkin Infectious Disease Hospital, St. Petersburg, Russian Federation
St. Petersburg AIDS Center, St. Petersburg, Russian Federation
University Of Pittsburgh, Pittsburgh, Pennsylvania, United States
Ohio State University Medical Center, Columbus, Ohio, United States
St. Michaels Hospital - Toronto, Toronto, Ontario, Canada
University of Pittsburgh, Pittsburgh, Pennsylvania, United States
University of California - Davis, Sacramento, California, United States
Tampa General Hospital, Tampa, Florida, United States
Boston University Medical Center, Boston, Massachusetts, United States