this is because premature twins have an extremely high mortality risk during delivery, which made it statistically Atlanta unlikely that Flickr: from Photos Gordas birth. The odds ratio for having a same sex and different sex twin delivery for each maternal age or parity group is shown in figure 1. The maternal
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happen in a set of identical boys, when one twin or a "Y". At this point if both eggs are
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identical" but still called twins. If the women have sex with more then one male~. This research into
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sex twins is being conducted because I have not been able to find a satisfactory explanation as. Heaviest mixed-sex twins born. Comment | Read Comments (1). By posting a comment,
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