we examined 11 children testing the parameters of : urine volume , creatinine concentration and -excretion , glycosaminoglycan concentration and -excretion , the glycosaminoglycan/creatinine ratio , chondroitin 4 sulfate ( ch4s ) in % of total agag , ch4s in mg/2 hrs , heparan sulfate ( hs ) in % of total agag and hs in mg/2 hrs .
C0017973
glycosaminoglycan
C0019143
hs