Prevention of dextran-induced anaphylactic reactions by hapten inhibition. III. A Scandinavian multicenter study on the effects of 20 ml dextran 1, 15%, administered before dextran 70 or dextran 40 - Renck, H; Ljungström, K-G; Hedin, H; Richter, W (Acta Chir Scand, 1983)