title: Factors contributing to intra-individual variation of serum constituents: 3. Use of randomized duplicate serum specimens to evaluate sources of analytical error.
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001663:Bilirubin / Q000097:blood; D001774:Blood Chemical Analysis / Q000379:methods; D001798:Blood Proteins / Q000032:analysis; D002118:Calcium / Q000097:blood; D002712:Chlorides / Q000097:blood; D002784:Cholesterol / Q000097:blood; D003404:Creatinine / Q000097:blood; D004798:Enzymes / Q000097:blood; D005069:Evaluation Studies as Topic; D005215:Fasting; D006801:Humans; D007501:Iron / Q000097:blood; D008055:Lipids / Q000097:blood; D008297:Male; D010710:Phosphates / Q000097:blood; D011188:Potassium / Q000097:blood; D012044:Regression Analysis; D012964:Sodium / Q000097:blood; D013997:Time Factors; D014508:Urea / Q000097:blood; D014527:Uric Acid / Q000097:blood
chemical_list: D001798:Blood Proteins; D002712:Chlorides; D004798:Enzymes; D008055:Lipids; D010710:Phosphates; D014527:Uric Acid; D014508:Urea; D002784:Cholesterol; D012964:Sodium; D003404:Creatinine; D007501:Iron; D001663:Bilirubin; D011188:Potassium; D002118:Calcium