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Clark, Richard, PhD

Scientific Director, Microbiology/Virology
Quest Diagnostics Nichols Institute
Chantilly, VA

Expert Insight: The Role of Interferon-Gamma Release Assays (IGRAs) in the Diagnosis of Tuberculosis

Publication: Recovery and Its Dynamics of Filamentous Fungi from Clinical Specimen Cultures: An Extensive Study

Publication: Retrospective Performance Analyses of over Two Million U.S. QuantiFERON Blood Sample Results

Publication: Current significance of the Mycobacterium chelonae-abscessus group.

Publication: Current Significance of the Mycobacterium chelonae-abscessus complex

Publication: Acid-fast bacterium detection and identification from paraffin-embedded tissues using a PCR-pyrosequencing method.