4-Hydroxyphenylacetate/Creatinine &#x7C; Urine &#x7C; Drug toxicology
4-hydroxyphenylacetate/creatinine &#x7c; urine &#x7c; drug toxicology
4-Hydroxyphenylacetate/Creatinine &#x7C; Urine &#x7C; Drug toxicology
4-hydroxyphenylacetate/creatinine &#x7c; urine &#x7c; drug toxicology