| parent | Endocrine | LP31396-2 |
| child | Melatonin | Cerebral spinal fluid | Chemistry - non-challenge | LP381328-6 |
| child | Melatonin | Saliva | Chemistry - non-challenge | LP381329-4 |
| child | Melatonin | Serum or Plasma | Chemistry - non-challenge | LP381330-2 |
| child | Melatonin | Urine | Chemistry - non-challenge | LP381331-0 |
| PartDisplayName | en-US | Melatonin |
| DisplayName | en-US | Melatonin |
LOINC Version: 2.77
FHIR