First multimodal embolization particles visible on x-ray/computed tomography and magnetic resonance imaging - Bartling, Sönke; Budjan, Johannes; Haneder, Stefan; Kränzlin, Bettina; Michaely, Henrik J. M.; Diehl, Steffen J.; Gretz, Norbert; Schönberg, Stefan; Sadick, Maliha (Investigative radiology, 2011)