Globotriaosylsphingosine accumulation and not alpha-galactosidase A deficiency causes endothelial dysfunction in Fabry disease - Namdar, M; Gebhard, C; Studiger, R; Shi, Y; Mocharla, P; Schmied, C; Brugada, P; Lüscher, T F; Camici, G G (PLoSOne, 2012)