1. Valenstein P. Laboratory turnaround time. Am J Clin Pathol. 1996;105:676-688.
2. Steindel SJ, Novis DA. Using outlier events to monitor test turnaround time. Arch Pathol Lab Med. 1999;123:607-614.
3. Plebani M, Ceriotti F, Messeri G, et al. Laboratory network of excellence: Enhancing patient safety and service effectiveness. Clin Chem Lab Med. 2006;44:150-160.
4. Roberts T, Smith M, Roberts B. Observations on centrifugation: Application to centrifuge development. Clin Chem. 1999;45:1889-1897.
5. Laessig RH, Westgard JO, Carey RN, et al. Assessment of a serum separator device for obtaining serum specimens suitable for clinical analyses. Clin Chem. 1976;22:235-239.