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While North Carolina has long had a 20-week ban, Nebraska in 2010 was the first state to recently enact one. Five more states followed in 2010: Alabama, Idaho, Indiana, Kansas and Oklahoma.

Along with Arizona, Georgia and Louisiana approved 20-week bans this year, though Georgia’s law doesn’t take effect until 2013.

The Center for Reproductive Rights said none of the 20-week bans have so far been blocked by courts.