A quality-control program based on the use of desk-top digital computer.
D001774:Blood Chemical Analysis / Q000592:standards; D001806:Blood Urea Nitrogen; D002624:Chemistry, Clinical / Q000592:standards*; D003201:Computers; D006801:Humans; D008433:Mathematics; D009584:Nitrogen / Q000097:blood; D013223:Statistics as Topic
D009584:Nitrogen