RT Journal Article SR Electronic T1 An immunoradiometric assay for ferritin in the serum of normal subjects and patients with iron deficiency and iron overload JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 326 OP 329 DO 10.1136/jcp.25.4.326 VO 25 IS 4 A1 G. M. Addison A1 M. R. Beamish A1 C. N. Hales A1 M. Hodgkins A1 A. Jacobs A1 P. Llewellin YR 1972 UL http://jcp.bmj.com/content/25/4/326.abstract AB An immunoradiometric assay for human ferritin has been developed. Concentrations of ferritin in the serum of male and female controls and patients with iron deficiency and iron overload were measured. Male controls were found to have a significantly higher mean concentration of serum ferritin than females. Patients with iron deficiency had significantly lower levels than normals of either sex and patients with iron overload had greatly elevated serum ferritin concentrations. It is thought that the serum ferritin concentration may reflect the iron stores of the body.