Threo-4,5-Dihydrohexanolactone/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
threo-4,5-dihydrohexanolactone/creatinine &#x7c; urine &#x7c; chemistry - non-challenge
Threo-4,5-Dihydrohexanolactone/Creatinine &#x7C; Urine &#x7C; Chemistry - non-challenge
threo-4,5-dihydrohexanolactone/creatinine &#x7c; urine &#x7c; chemistry - non-challenge