Original file (WebM audio/video file, VP9/Vorbis, length 11 min 11 s, 1,920 × 1,080 pixels, 838 kbps overall)
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Summary
DescriptionMultiple sclerosis.webm
English: What is multiple sclerosis? Multiple sclerosis is a chronic and progressive neurological disease that results in neuronal cell death, which can lead to a variety of symptoms.
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