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BioSN, Patient receiving biosimilar who was previously biologic-naïve; BioSE, Patient receiving biosimilar who has experience of a bio-originator; BioOA, Patient receiving bio-originator who was initiated after February 2015; BioOB, Patient receiving bio-originator who was initiated before January 2015. “Blue”- BioSN, “orange accent 6”- BioSE, “grey”- BioOA, “orange”—BioOB.
