recombination and crossover of serum fractions of patients and controls separated by ultracentrifugation revealed that the defect in cholesterol transfer of the patients was in the d greater than 1.063 gm/ml fraction ( containing hdl and other serum proteins ) , which not only contained less hdl cholesterol , but was also qualitatively inferior as donor for cholesterol transfer .
C0023822
hdl cholesterol
C0008377
cholesterol