| parent | Cystine.free | LP32649-3 | 
| child | Cystine Free [Presence] in Serum or Plasma | 40870-8 | 
| child | Cystine Free [Moles/volume] in Serum or Plasma | 34624-7 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Cystine Free | Serum or Plasma | Chemistry - non-challenge | 
LOINC Version: 2.78