most glycosaminoglycans were inactive ( heparan sulfates , chondroitin-6 sulfates ) or only weakly active ( dermatan sulfates , chondroitin 4-sulfates , hyaluronates ) , the weakly active group increasing the incidence of coupling to 10-30 % with the addition of 50-100 micrograms/ml of the factor .
C0017973
glycosaminoglycans
C0019143
heparan