Chuan-zhen Wu

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Extraskeletal osteosarcoma (EOS) is rare and commonly arises in the retroperitoneum, limbs, head and neck. There is no significant difference between EOS and other malignant tumors in soft tissue. Localized pain and swelling are the common presenting symptoms. Clinical diagnosis of EOS is difficult, imaging techniques may be helpful and careful, and the(More)
The process of the trust production and transfer is both stochastic and rational. In this article, we analyze the characters of this process in consumer's social networks, by dividing consumers and merchants into two types: Risk-aversion type and Risk-neutral type for consumers, high-grade and low-grade for merchants respectively. Based on multi-agent(More)
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