对于HIV检测的服务利用，目标人群会主观上感知到许多风险，这些风险是阻碍服务利用的重要因素。

People who want to take the HIV test will face lots of perceived risks. These risks are important obstacle factors for people to take the test.

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本研究也发现卖方声誉、待售商品价格以及买方风险态度等因素对买方的感知风险有重要的影响，而感知风险又影响买方是否采用第三方担保服务的决定。

This study also finds that sellers 'reputation, product price, and buyer's risk attitude has a significant effect on buyer's risk perception, which influences his OES adoption decision.

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