| 11. | Multiple births that are conceived from separate eggs are more common.
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| 12. | IVF is not the only fertility treatment that causes multiple births.
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| 13. | Patients bear some responsibility for their high rate of multiple births.
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| 14. | But new treatments and drugs have also increased the number of multiple births.
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| 15. | In some, multiple births are considered something fitting for animals _ not humans.
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| 16. | For multiple births, the mortality risk was lowest at 37 to 38 weeks.
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| 17. | In 1993, multiple births topped 100, 000 for the first time.
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| 18. | The techniques continue to produce a high percentage of multiple births.
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| 19. | Commotion over multiple births _ quadruplets, quintuplets, sextuplets _ isn't new.
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| 20. | Twins are by far the most common form of multiple births in humans.
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