High prevalence of SDHB mutations in head and neck paraganglioma in Belgium - Persu, A; Hamoir, M; Gregoire, V; Garin, P; Duvivier, E; Reychler, H; Chantrain, G; Mortier, G; Mourad, M; Maiter, D; Vikkula, M (J Hypertens, 2008)