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Workshop on Quality-Assurance and Quality-Control Procedures for CD4 T-Lymphocyte Determinations

The National Laboratory Training Network (NLTN), a cooperative training system of CDC and the Association of State and Territorial Public Health Laboratory Directors, will sponsor 3-day workshops on quality-assurance and quality-control procedures for T-lymphocyte determinations at sites throughout the country during June and July 1993. This workshop is intended for managers, supervisors, and technical staff of flow cytometric immunophenotyping programs who have at least 6 months' experience operating flow cytometers.

The goal of the workshop is to assist participants in integrating recommended procedures for quality assurance and quality control into their flow cytometric immunophenotyping programs for the determination of CD4+ T-lymphocyte levels in human immunodeficiency virus-infected persons. The workshop will include safety issues; specimen collection, shipping, and storage; selection of the reagent panel; sample preparation and erythrocyte lysis and fixation; flow cytometer set-up and standardization; sample analysis; data reduction; troubleshooting; report preparation; and overall quality-control procedures.

There is a registration fee. Workshop dates, locations, and telephone numbers of contacts are: June 7-9, Brentwood, Tennessee -- contact NLTN Southeastern Office, (615) 262-6315; June 23-25, Milwaukee -- contact NLTN Midwestern Office, (312) 793-3306; June 29- July 1, North Dartmouth, Massachusetts -- contact NLTN New England Office, (617) 522-3700, ext. 153; July 12-14, Denver -- contact NLTN Western Office, (303) 691-4708; July 22-24, Seattle -- contact NLTN Pacific Office, (510) 540-3991; and July 28-30, Dallas -- contact NLTN South Central Office, (504) 568-2081.

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