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Title: Are some human blood types superior to others? Post by: soccerplaya827 on Nov 14, 2012 I gave blood recently. My blood type is O negative. Is this good? Does it matter at all? Is there any significance whatsoever? My friends blood type came out to A positive. She gave blood with me. I was just wondering if it mattered at all. What are blood types, and what do they mean?
Title: Are some human blood types superior to others? Post by: nuxeh on Nov 14, 2012 Content hidden
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