A1/A2 polymorphism of glycoprotein IIIa and association with excess procedural risk for coronary catheter intervention: a case-controlled study - Laule, M; Cascorbi, I; Stangl, V; Bielecke, C; Wernecke, KD; Mrozikiewicz, PM; Felix, SB; Roots, I; Baumann, G; Stangl, K (Lancet, 1999)