Hydantoin-5-propionate/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
hydantoin-5-propionate/creatinine &#x7c; urine &#x7c; chemistry - non-challenge
Hydantoin-5-propionate/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
hydantoin-5-propionate/creatinine &#x7c; urine &#x7c; chemistry - non-challenge