Glycyl-4-hydroxyproline/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
glycyl-4-hydroxyproline/creatinine &#x7c; urine &#x7c; chemistry - non-challenge
Glycyl-4-hydroxyproline/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
glycyl-4-hydroxyproline/creatinine &#x7c; urine &#x7c; chemistry - non-challenge