Microbubbles as a contrast agent in grating interferometry mammography: an ex vivo proof-of-mechanism study. - Lång K; Arboleda C; Forte S; Wang Z; Prevrhal S; Koehler T; Kuhn N; David B; Jefimovs K; Kubik-Huch RA; Stampanoni M (European radiology experimental, 2019)