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2. Laboratory requirements. 42 CFR, chapter IV, part 493;Centers for Medicare & Medicaid Services,1992
3. Laboratory requirements. 42 CFR, chapter IV, part 493;Centers for Medicare & Medicaid Services,2003
4. Has compliance with CLIA requirements really improved quality in US clinical laboratories?;Ehrmeyer;Clin. Chim. Acta,2004
5. Evolution of an external quality assessment program in Canadian mycobacteriology laboratories;Canadian Tuberculosis Laboratories Technical Network;Am. J. Clin. Pathol.,2004