1. Abrams, A., P. P. Cohen and O. O. Meyer: The physical properties of a cryoglobulin obtained from lymph nodes and serum of a case of lymphosarcoma. J. Biol. Chem. 181, 237 (1949).
2. Achenbach, W., U. U. Kanzow: Zur hämorrhagischen Diathese bei der Makroglobulinämie Waldenstrom. Europäischer Hämatologenkongreß, Freiburg i. Br. 1955, S. 631, Springer-Verlag 1956.
3. Agren, G.: The amino acid composition of “macroglobulin”. Acta Soc. med. upsalien. 57, 223 (1952).
4. Avogaro, P., e C. Nadin: Osservazione di macroglobulinemia emorragica con emogelificazione associata a cirrosi volgare del fegato. Dati clinici e riscontro anatomopatologico. Acta Med. patav. 16, 499 (1956).
5. Berlin, R.: A case of myeloma with symptoms from the nervous system. Acta med. scand. (Stockh.) Suppl. 170, 156 (1946).