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Figure 1 Diagnostic guideline for chronic polyneuropathy (nadir after three months). ALT, alanine aminotransferase; CIAP, chronic inflammatory axonal polyradiculoneuropathy; CIDP, chronic inflammatory demyelinating polyradiculoneuropathy; GGT, γ glutamyl transferase; HNLPP, hereditary neuropathy with liability to pressure palsies; SSA/B, Sjögren's syndrome antigen A/B; TSH, thyroid stimulating hormone.
