@KirkegaardEmil @piffer_davide http://hbdchick.wordpress.com/2011/08/08/inbreeding-in-italy/ … (~_^) (welcome to twitter, davide!)
Italian regional PISA predicts mental retardation rates. Also, Piffer made a twitter: @piffer_davide @hbdchickpic.twitter.com/ltkhnYoUB2
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