Primary structure of the asparagine-563-linked carbohydrate chain of an immunoglobulin M from a patient with Waldenstrom's macroglobulinemia. A reinvestigation by 500 MHz 1H-NMR spectroscopy

1. de la Peña, P.
2. Barros, F.
3. Gascón, S.
4. Ramos, S.
5. Lazo, P.S.