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Text Sign Showing Shorthness Of Breath. Conceptual Photo Intense Tightening Of The Airways Causing Breathing Difficulty Blank Bordered Board Behind Man Sitting Smiling With Laptop Mug On Desk.
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Text Sign Showing Common Cold. Conceptual Photo Viral Infection In Upper Respiratory Tract Primarily Affecting Nose Blank Bordered Board Behind Man Sitting Smiling With Laptop Mug On Desk.
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Text Sign Showing Mass Screening. Conceptual Photo Health Evaluation Performed At A Large Amount Of Population Blank Bordered Board Behind Man Sitting Smiling With Laptop Mug On Desk.
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Text Sign Showing Respiratory Infection. Conceptual Photo Any Infectious Disease That Directly Affects The Normal Breathing Blank Bordered Board Behind Man Sitting Smiling With Laptop Mug On Desk.