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Protocol adherence and violations in the IMPROVED-study and answers of the rheumatologist to the questionnaire. a: protocol adherence was evaluated every visit; b: question was asked every visit from the second visit and after the second year only at yearly visits; c: question was asked every visit from the second visit and after the second year only at yearly visits; d: question was asked every visit from the second visit until the seventh visit. DAS disease activity score
