Purpura

• University of Alberta Hospital — Edmonton, Alberta, Canada
• Vancouver General Hospital — Vancouver, British Columbia, Canada
• Hamilton Health Sciences — Hamilton, Ontario, Canada
• London Health Sciences Center — London, Ontario, Canada

• Liestal Cantonal Hospital — Liestal, Basel-Landschaft, Switzerland
• Lucerne Cantonal Hospital — Lucerne, Canton of Lucerne, Switzerland
• Aarau Cantonal Hospital — Aarau, Switzerland
• University Hospital Basel — Basel, Switzerland

• Qilu Hospital, Shandong University — Jinan, Shandong, China

• Qilu Hospital, Shandong University — Jinan, Shandong, China

• Henri Mondor Hospital — Créteil, France

• Research Site — Sapporo, Hokkaido, Japan
• Research Site — Tsukuba, Ibaraki, Japan
• Research Site — Isehara-shi, Kanagawa, Japan
• Research Site — Sagamihara, Kanagawa, Japan

• Research Site — Orange, California, United States
• Research Site — San Diego, California, United States
• Research Site — Washington D.C., District of Columbia, United States
• Research Site — Atlanta, Georgia, United States

Not specified

• Children's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States

• Aalborg Hospital — Aalborg, Denmark
• Copenhagen University Hospital Rigshospitalet — Copenhagen, Denmark
• Esbjerg Hospital — Esbjerg, Denmark
• Copenhagen University Hospital Herlev, Department of Haematology — Herlev, Denmark