References: Procedures for the Collection of Diagnostic Blood Specimens by Venipuncture (H3-A6), 3rd Edition published by the National Committee for Clinical Laboratory Standards.
Ault KA. Flow cytometric evaluation of normal and neoplastic B cells. In: Rose NR, Friedman H, Fahey JL, eds. Manual of Clinical Laboratory Immunology. Washington, DC: Americal Society for Microbiology; 1986:247-253.