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<http://www.agweb.com/article/new_sorghum_herbicide-tolerant_trait_coming_to_a_field_near_you_NAA_Rhonda_Brooks/>
<http://www.agweb.com/mymachinery/article/new_sorghum_herbicide-tolerant_trait_coming_to_a_field_near_you_naa_rhonda_brooks/>