These results were later confirmed by Sadick et al. (2005) who showed that plasma VEGF levels are 10-fold higher on average in a group of 31 HHT patients than in a comparable number of non-HHT population (331 pg/mL vs 20 pg/mL, respectively; Figure 3B). The gene discussed is VEGFA; the disease is hereditary hemorrhagic telangiectasia.