Retraction notice to ``Using a back propagation network combined with grey clustering to forecast policyholder decision to purchase investment-inked insurance'' [ESWA 38/6 (2010) 6736-6747]
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论文评审过程：Author links open overlay panelKer-TahHsu
论文官网地址：https://doi.org/10.1016/j.eswa.2018.10.037
