Itzykson R, Le Garff-Tavernier M, Katsahian S, Diemert M-C, Musset L, Leblond V. Serum-free light chain elevation is associated with a shorter time to treatment in Waldenstrom’s macroglobulinemia. Haematologica 2008; 93(5):793-794; https://doi.org/10.3324/haematol.12107.