Erratum to: 'Normal endothelial but impaired arterial development in MAP-Kinase activated protein kinase 2 (MK2) deficient mice'. Issue 1 (December 2017) - Napp, L.; Jabs, Olga; Höckelmann, Anna; Dutzmann, Jochen; Kapopara, Piyushkumar; Sedding, Daniel; Gaestel, Matthias; Bauersachs, Johann; Bavendiek, Udo