University of Louisville School of Medicine, Louisville, Kentucky, United States
University Surgical Associates, Providence, Rhode Island, United States
St Josef's Hospital, Wiesbaden, Germany
Prince of Wales/Chinese University of Hong Kong, Sha Tin, Hong Kong
Klinikum Hochsauerland, Arnsberg, Germany
Krankenhaud Bucholz, Buchholz, Germany
Universitätsklinikum Jena, Jena, Germany
Kyushu University Hospital, Fukuoka, Japan
Minami Tohoku Hospital, Fukushima, Japan
Hyogo Brain and Heart Center, Hyogo, Japan
Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States
University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
University of California, San Francisco, San Francisco, California, United States
Christine E. Lynn Heart and Vascular Institute, Boca Raton, Florida, United States
Emory University, Atlanta, Georgia, United States
Allegheny General Hospital, Pittsburgh, Pennsylvania, United States
Yale New Haven School of Medicine, New Haven, Connecticut, United States
William Beaumont Hospital, Royal Oak, Michigan, United States
University of North Carolina, Chapel Hill, North Carolina, United States
Emory University, Atlanta, Georgia, United States
Ohio State University, Columbus, Ohio, United States
Hackensack University Medical Center, Hackensack, New Jersey, United States
St. Paul's Hospital, Vancouver, British Columbia, Canada
Royal Liverpool Hospital, Liverpool, United Kingdom
Salford Royal Hospital, Salford, England, United Kingdom