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A set of four signs indicates permissible turns on the road, showing the direction of left, right, and u-turns. The signs are round with a red border.
Man in suit holding up smartphone with wireless signal waves emanating from it
Traffic light icon. Traffic signal sign. Street regulation system isolated on white background.
Growth Factor Signaling via Ras, Raf, MEK, ERK MAP Kinase Pathway: Membrane-Initiated Signal Transduction Cascade
Illustration without analog TV broadcast background signal. Illustration vector

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