The renal range of the κ/λ sFLC ratio: best strategy to evaluate multiple myeloma in patients with chronic kidney disease oleh Alícia Molina-Andújar, Pau Robles, Maria T. Cibeira, Enrique Montagud-Marrahi, Elena Guillen, Marc Xipell, Miquel Blasco, Esteban Poch, Laura Rosiñol, Joan Bladé, Luis F. Quintana