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"Only 12% of knowledge is retained after 2 weeks." #foamus, #foamed http://t.co/QDwb3S5rrQ
"Only 12% of knowledge is retained after 2 weeks." #foamus, #foamed http://t.co/QDwb3S5rrQ
"Only 12% of knowledge is retained after 2 weeks." #foamus, #foamed http://t.co/QDwb3S5rrQ