Necrosis

• Stevenson Memorial Hospital — Alliston, Ontario, Canada
• Sudbury Regional Hospital — Greater Sudbury, Ontario, Canada
• Southlake Regional Health Centre — Newmarket, Ontario, Canada
• Rouge Valley — Toronto, Ontario, Canada

• Stanford University — Stanford, California, United States
• William Beaumont Hospital — Royal Oak, Michigan, United States
• The Jewish Hospital — Cincinnati, Ohio, United States
• The University of Pennsylvania — Philadelphia, Pennsylvania, United States

Not specified

• Department of Surgery, Koge Hospital — Køge, Denmark

• University Medical Center Groningen — Groningen, Netherlands

• Hôpital Louis Pradel — Bron, France

• Seoul St. Mary's hospital — Seoul, South Korea

• Fuwai Hospital — Beijing, China

• Erlanger Baroness Medical Center — Chattanooga, Tennessee, United States

• First Hospital of Jilin University — Changchun, Jilin, China