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right/left saphenous vein

above/below
superior/inferior vena cava

right/left brachiocephalic vein (note there is a brachiocephalic artery with no direction, but is more on the right side)

right/left internal jugular vein

right/left external jugular vein

right/left cephalic vein

right/left basilic vein

the first one
right/left antecubital vein