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Ultrasound are sound waves or vibrations having ultrasonic frequency (>20,000Hz), which are beyond the limit of human's ability of hearing. In medi...
Spider Veins are thin, smaller, red, blue or purple blood vessels which in turn and twist. Spider veins occur when the valves inside the blood vessels...
Ultrasound are sound waves or vibrations having ultrasonic frequency (>20,000Hz), which are beyond the limit of human's ability of hearing. In medi...