SPE was performed to detect the levels of serum albumin, 2.6 g/dl (normal 3.2-5.6 g/dl); α 1, 0.4 g/dl (normal, 0.1-0.4 g/dl); α 2, 0.9 g/dl (normal, 0.4-1.2 g/dl); β, 0.9 g/dl (normal, 0.6-1.3 g/dl); γ, 0.7 g/dl (normal, 0.5-1.6 g/dl); M spike of 0.3 g/dl. SPE, serum protein electrophoresis.