Effect of plaque modification on sirolimus-eluting stent expansion in heavily calcified lesions: an intravascular ultrasound assessment of actual stent dimensions compared to predictions from manufacturers' compliance charts - Kim, S.-Y.; Steinberg, DH; Scheinowitz, M; Mintz, GS; Weissman, NJ; Waksman, R (Cardiovascular Revascularization Medicine, 2008)