Flush heparin during cardiac catheterization prevents long-term coagulations activation in children without APC-Resistance - preliminary results - Vielhaber, H; Kohlhase, B; Koch, HG; Kehl, HG; Fliedner, M; Kececioglu, D; Kehrel, B; Veltmann, H; Vogt, J; Nowak-Gottl, U (Thromb Res, 1996)