3-beta-D-glucuronosyl-3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein D-glucuronyl-1,3-beta-D-galactosylproteoglycan GLUCURONYL-ETCETERA-GALACTOSYLPROTEOGLYC beta-D-glucuronyl-1,3-D-galactosylproteoglycan