title: Variability of serum ferritin concentration in normal subjects.
abstract: Serum ferritin concentrations were measured in normal subjects over periods of 1 day, 1 week and 7 weeks. The variation of the results was compared with variation of control of control sera. In most of the subjects the variation in the results could be attributed to the variation in the method of measurement. No diurnal variation in serum ferritin concentration was observed.
mesh_terms: D002940:Circadian Rhythm; D005260:Female; D005293:Ferritins / Q000097:blood*; D006801:Humans; D008297:Male; D012016:Reference Values
chemical_list: D005293:Ferritins