Connective Tissue Diseases

• Atatürk Universitesi Araştırma Hastanesi — Erzurum, Yakutiye, Turkey (Türkiye)

• Berlin, Germany

• Centre for Contact Lens Research, University of Waterloo — Waterloo, Ontario, Canada

• The first affiliated hospital of bengbu medical college — Bengbu, Anhui, China
• The first affiliated hospital of anhui medical university — Hefei, Anhui, China
• Yijishan Hospital of Wannan Medical College — Wuhu, Anhui, China

Not specified

• "Attikon" University General Hospital — Haidari, Athens, Attica, Greece

• University of Alabama at Birmingham — Birmingham, Alabama, United States

• Medical Center Alkmaar — Alkmaar, North Holland, Netherlands
• Ziekenhuisgroep Twente — Almelo, Overijssel, Netherlands
• Albert Schweitzer Hospital — Dordrecht, South Holland, Netherlands
• Erasmus Medical Center — Rotterdam, South Holland, Netherlands

• Seoul National University Hospital — Seoul, South Korea

• Brigham and Women's Hospital — Boston, Massachusetts, United States