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G20 Leaders: A who's who gallery

By: Samantha Johnson on Oct. 16, 2009, 11:23 p.m.
Cristina Kirchner

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Argentina

Cristina Kirchner took over the presidency of Argentina in December 2007 from her husband, Néstor Kirchner. As Argentina's first female head of state, she's a member of the Council of Women World Leaders, an international network of current and former women presidents and prime ministers focused on social justice and equitable development.