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Marta Jeremic declares that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Evica Dincic has been an advisor or speaker for Medis, Merck, Teva, Hemofarm, Novartis, and Roche. Slobodan Vojinovic has been an advisor or speaker for Medis, Merck, Teva, Hemofarm, Novartis, and Roche. Sladjana Andrejevic has been speaker for Takeda Pharmaceuticals. Sarlota Mesaros has been an advisor or speaker for Medis, Merck, Teva, Hemofarm, Novartis, and Roche. Jelena Drulovic has been an advisor or speaker for Bayer HealthCare, Sanofi-Genzyme, Medis, Merck, Teva, Novartis, Biogen, Hemofarm, Pharma Swiss, Amicus, and Roche.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}