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Marchiafava-Bignami disease is rare, so the clinical anchor is narrow.\nexposure: Chronic alcohol use with poor nutrition\nevidence_span: {\"source_cache\": \"artifacts/alcohol-research/28225048.abstract.txt\", \"locator\": \"Indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"14985f03480c03e14fe75f00e454323cd6f5d414f3775e5ee0d4d4da7825e8c6\", \"start_char\": 0, \"end_char\": 1824, \"text_sha256\": \"14985f03480c03e14fe75f00e454323cd6f5d414f3775e5ee0d4d4da7825e8c6\"}\n[alcohol-p28225048] Thiamine deficiency, oxidative metabolic pathways and ethanol-induced neurotoxicity: how poor nutrition contributes to the alcoholic syndrome, as Marchiafava-Bignami disease. 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