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Message-ID: <317737de0903110609i21065843lf9eaa2eae9e156cd@mail.gmail.com>
Date: 2009-03-11T13:09:01Z
From: Jorge Ivan Velez
Subject: mean +/- SEM
In-Reply-To: <341027.26321.qm@web45511.mail.sp1.yahoo.com>

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