523-02309
Lecture audience members
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523-02309
Lecture audience members
523-02310
Lecturer speaking before an audience
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523-02310
Lecturer speaking before an audience
523-02311
Lecturer answering questions
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523-02311
Lecturer answering questions
523-02312
Lecturer taking questions audience
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523-02312
Lecturer taking questions audience
523-02313
Lecturer rousing audience
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523-02313
Lecturer rousing audience
523-02314
Lecturer rousing audience
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523-02314
Lecturer rousing audience
523-02315
Continuing Medical Education Lecture
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523-02315
Continuing Medical Education Lecture
523-02316
Continuing Medical Education Lecture
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523-02316
Continuing Medical Education Lecture
523-02317
Continuing Medical Education Lecture
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523-02317
Continuing Medical Education Lecture
035-00173
Male lecturer teaching sign language
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035-00173
Male lecturer teaching sign language
353-03425
Young lecturer explaining aircraft instrument panel
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353-03425
Young lecturer explaining aircraft instrument panel