Cholesterol in a regional program--reduction of interlaboratory variability by correcting systematic bias.
D001681:Biological Assay / Q000592:standards; D002784:Cholesterol / Q000097:blood*; D019411:Clinical Laboratory Techniques / Q000592:standards; D003327:Coronary Disease / Q000097:blood; D006801:Humans; D008433:Mathematics; D008722:Methods; D011379:Prognosis
D002784:Cholesterol