Reliability of five rapid D-Dimer assays compared to ELISA in the exclusion of deep venous thrombosis - Janssen, M CH; Heebels, A E; Metz, de M; Verbruggen, H; Wollersheim, H; Janssen, S; Schuurmans, M MJ; Nováková, I RO (Thromb Haemost, 1997)