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A technician opens a vessel containing women's frozen egg cells on April 6, 2011 in Amserdam. From today onwards it will be possible for women to have their ova, or egg cells, frozen in the Netherlands. Freezing can be done for medical reasons, for example in case a woman is suffering from cancer, but is also for women who want to have a child but have not got a partner yet. AFP PHOTO/ANP/XTRA/LEX VAN LIESHOUT netherlands out - belgium out (Photo credit should read LEX VAN LIESHOUT/AFP/Getty Images)

A technician opens a vessel containing women's frozen egg cells on April 6, 2011 in Amserdam. From today onwards it will be possible for women to have their ova, or egg cells, frozen in the Netherlands. Freezing can be done for medical reasons, for example in case a woman is suffering from cancer, but is also for women who want to have a child but have not got a partner yet. AFP PHOTO/ANP/XTRA/LEX VAN LIESHOUT netherlands out - belgium out (Photo credit should read LEX VAN LIESHOUT/AFP/Getty Images)
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AFP AFP

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Dr. Karen Glass with the liquid nitrogen used to store oocytes (eggs) and embryos before their transfer into more permanent storage (into the big urns with orange biohazarad stickers on them on the floor in this photo) at 'Create' a fertility clinic. for story on the growing business of egg harvesting and freezing May 26, 2011 TANNIS TOOHEY/TORONTO STAR (Photo by Tannis Toohey/Toronto Star via Getty Images)

Dr. Karen Glass with the liquid nitrogen used to store oocytes (eggs) and embryos before their transfer into more permanent storage (into the big urns with orange biohazarad stickers on them on the floor in this photo) at 'Create' a fertility clinic. for story on the growing business of egg harvesting and freezing May 26, 2011 TANNIS TOOHEY/TORONTO STAR (Photo by Tannis Toohey/Toronto Star via Getty Images)
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Toronto Star Tannis Toohey

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Computer screen image of sperm being injected into ovum, during invitro fertilization.

Computer screen image of sperm being injected into ovum, during invitro fertilization.
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Corbis Documentary Ted Horowitz

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Sample of sperm frozen tank

Sample of sperm frozen tank
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E+ bluecinema

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ICSI (artificial fertilization), sperm being injected into egg x800

ICSI (artificial fertilization), sperm being injected into egg x800
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The Image Bank Mark Harmel