5-Hydroxytryptophan/Creatinine &#x7C; Urine &#x7C; Drug toxicology
5-hydroxytryptophan/creatinine &#x7c; urine &#x7c; drug toxicology
5-Hydroxytryptophan/Creatinine &#x7C; Urine &#x7C; Drug toxicology
5-hydroxytryptophan/creatinine &#x7c; urine &#x7c; drug toxicology