Early registration for the 21st Cochrane Colloquium is now open. Registrants have until 16 July 2013 to receive the discounted registration fee, and until 6 September 2013 before regular registration closes. Students, consumers and residents of low- or middle-income countries are also able to receive a discounted rate until 6 September. This year's Colloquium is not only a conference, but also a celebration of The Cochrane Collaboration's 20th anniversary, and there will be plenty of surprises you won't want to miss. For more information about this event and to register, visit colloquium.cochrane.org.

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