Description of the patients involved in this study.

AL =  light chain amyloidosis; MM =  multiple myeloma; MGUS = monoclonal gammopathy of undetermined significance; M-protein =  monoclonal protein; sFLC = serum free light chain concentration in milligrams per deciliter. Proteinuria is the concentration of protein in urine in grams per day. * This patient in currently in complete hematologic and near complete renal response after autologous stem cell transplantation.