Chavez to Cuba for more chemo

EDITORS PLEASE NOTE: EDIT CONTAINS CONVERTED 4:3 MATERIAL
ROUGH CUT - NO REPORTER NARRATION
Venezuelan President Hugo Chavez left on Saturday to Cuba for a fourth round of chemotherapy.
He dismissed as "worthless" an international court ruling that cleared a key opposition candidate to run against him in 2012.
Despite being treated over the past three months for cancer, Chavez was in classic form on Saturday, breaking into song during marathon public appearances.
The 57-year-old leader has shaved his head since entering chemotherapy and often jokes about his new look.
The opposition -- heartened by a recent decision from the Inter-American Court of Human Rights that cleared Leopoldo Lopez to run against Chavez -- aims to bring that revolution to an end in the October 2012 election.
Chavez's government issued a statement on Friday dismissing the Lopez ruling as a politically motivated violation of Venezuelan sovereignty.
The charismatic leftist has led Latin America's top oil- exporting country since 1999 and wants to stay in office until at least 2025 to consolidate his self-styled "revolution."