title: Serum ferritin levels in apparently healthy subjects.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005293:Ferritins / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010154:Pakistan; D011863:Radioimmunoassay; D012016:Reference Values; D012737:Sex Factors; D014168:Transferrin / Q000097:blood
chemical_list: D014168:Transferrin; D005293:Ferritins