A Costa Rican family affected with Charcot-Marie-Tooth disease due to the myelin protein zero (MPZ) p.Thr124Met mutation shares the Belgian haplotype. - Leal, Alejandro; Berghoff, Corinna; Berghoff, Martin; Rojas Araya, Melissa; Ortiz, Carolina; Heuss, Dieter; Del Valle, Gerardo; Rautenstrauss, Bernd