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Facts about Down Syndrome
http://pims.clan.su/dir/facts_about_down_syndrome/5-1-0-232 20.04.2011, 14:40
Down syndrome is a condition in which a baby is born with an extra chromosome. Chromosomes are small "packages” of genes in the body.
Transitions: 740 | Added by: Хадес
Събота, 21.07.2018, 02:26
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