50th years anniversary of EFSUMB: Initial roots, maturation, and new shoots - Jenssen, Christian; Ewertsen, Caroline; Piscaglia, Fabio; Dietrich, Christoph F.; Gilja, Odd Helge; Sidhu, Paul S.; Saftoiu, Adrian; Popescu, Alina; Sporea, Ioan; Cantisani, Vito; Meng, Stefan (Ultraschall in der Medizin - European Journal of Ultrasound, 2022)