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APA Citation
Koch, M. W., Mostert, J., Repovic, P., Bowen, J. D., Uitdehaag, B., & Cutter, G. (2021). is the Symbol Digit Modalities Test a useful outcome in secondary progressive multiple sclerosis?. European journal of neurology, 28, 2115–2120. http://access.bl.uk/ark:/81055/vdc_100130249702.0x000025