however , the mean line widths of the lipoprotein fractions isolated from those samples differed greatly , but the variance within each fraction was small ( very-low-density lipoprotein , 22.0 +/- 1.9 hz ; low-density lipoprotein , 35.0 +/- 2.8 ; high-density lipoprotein , 28.8 +/- 1.9 ) .
C0023820
lipoprotein
C0023825
very-low-density