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Diagram of the conduction system of the heart with main parts labeled. Electrical system of the heart. Vector illustration isolated on white background.
A person showing an anatomical model of the heart
Varicose veins. Blue blood vessel visible through the skin, abnormally swollen leg. Vascular disease diagnostic and treatment. Venous insufficiency medical disease
Woman receiving neck massage at beauty salon
Set of abstract glowing air flow effects with smooth white stripes and motion blur on transparent background. Ideal for illustrating air conditioning flow, HVAC systems, ventilation schemes.

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