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Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis.

Learmonth YC, Motl RW, Sandroff BM, Pula JH, Cadavid D. Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis. BMC Neurol. 2013 Apr 25; 13:37.

View in: PubMed