Intravascular sonographic evaluation of iliac-artery angioplasty: what is the mechanism of angioplasty and can intravascular sonography predict clinical outcome? - van Lankeren, W; Gussenhoven, EJ; van der Lugt, A; Vischjager, M; Khaje, P; Pieterman, H; Gerritsen, PG (Am J Roentgenol, 1996)