| parent | Estradiol.free | LP18655-8 | 
| child | Deprecated Estradiol Free [Mass/volume] in Serum or Plasma | 2242-6 | 
| child | Estradiol (E2) Free [Mass/volume] in Serum or Plasma | 2240-0 | 
| child | Estradiol (E2) Free/Estradiol (E2).total in Serum or Plasma | 14960-9 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Estradiol Free | Serum or Plasma | Chemistry - non-challenge | 
LOINC Version: 2.78