1. Brigham and Women's Hospital Boston Massachusetts
2. Lithuanian University of Health Sciences Kaunas Lithuania
3. Medica Pro Familia Gdynia Poland
4. Medical Plus Uherske Hradiste Czech Republic
5. Medica Pro Familia Warsaw Poland
6. Reumatika Centrum Reumatologii Warsaw Poland
7. Zdrowie Osteo‐Medic Białystok Poland
8. Mazowieckie Centrum Badań Klinicznych Grodzisk Mazowiecki Poland
9. Samsung Bioepis Incheon Republic of Korea