Erythro-4-Deoxytetronate/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
erythro-4-deoxytetronate/creatinine &#x7c; urine &#x7c; chemistry - non-challenge
Erythro-4-Deoxytetronate/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
erythro-4-deoxytetronate/creatinine &#x7c; urine &#x7c; chemistry - non-challenge