A F J E Vrancken, S Kalmijn, E Buskens, et al. Feasibility and cost efficiency of a diagnostic guideline for chronic polyneuropathy: a prospective implementation study (J Neurol Neurosurg Psychiatry 2006;77:397–401). In the legend to figure 1 of this paper the abbreviation CIAP is erroneously stated as “chronic inflammatory axonal polyradiculoneuropathy”. It should be “chronic idiopathic axonal polyneuropathy”.