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O Group ரத்தத்த எல்லாருக்கும் ஏத்த முடியும்னு சொன்னது பொய்யா?? | O group is not universal donor!
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Why O group is not a universal donor! | O GroupΩரத்தத்த எல்லாருக்கும் ஏத்த முடியும்னு சொன்னது பொய்யா
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