Persistent endothelial dysfunction in post-COVID-19 syndrome and its associations with symptom severity and chronic inflammation. - Kuchler T; Günthner R; Ribeiro A; Hausinger R; Streese L; Wöhnl A; Kesseler V; Negele J; Assali T; Carbajo-Lozoya J; Lech M; Schneider H; et al. (Angiogenesis, 2023)