Characterizing and quantifying low-value diagnostic imaging internationally: a scoping review. - Elin Kjelle; Eivind Richter Andersen; Arne Magnus Krokeide; Lesley J. J. Soril; Leti van Bodegom-Vos; Fiona M. Clement; Bjørn Morten Hofmann (BMC Medical Imaging, 2022)