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Education
Flat
School Icon Elements
flask, dna, education
DarkSlateGray
512x512
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Free icons for Windows8/Metro
dna, helix
UI
Glyph
Windows 8 metro style
PNG MORE
Windows 8 icons
helix, dna
26x26
PNG ICO MORE
Healthcare & medical
MedICO Free Medical Icons
dna
64x64