Endothelial dysfunction in adults with congenital heart disease: A systematic review and meta‐analysis. - Baroutidou, Amalia; Dimitroulas, Theodoros; Arvanitaki, Alexandra; Grantza, Triantafyllia; Otountzidis, Nikolaos; Farmakis, Ioannis T.; Karagiannidis, Artemios G.; Kamperidis, Vasileios; Ziakas, Antonios; Sarafidis, Pantelis; Giannakoulas, George (European Journal of Clinical Investigation, 2025)