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1·The objective is to investigate errors and mechanism of acalculia in patients with brain injury.

目的是探讨脑损伤患者失算症的错误表现和相关脑机制。

2·Objective To investigate errors and mechanism of acalculia in patients with brain injury.

目的探讨脑损伤患者失算症的错误表现和相关脑机制。