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Li, J.-B.; Du, L.-W.; Zhou, X.-M.; Wang, L.-F.; Bai, L.-Y. Fractionation of Extract from Ligusticum Chuanxiong (Apiaceae) by High Speed Counter Current Chromatography and Their Efficacy in Rice Against S-Metolachlor Injury. ajc 2012, 25, 1613-1617.