为美国卫生机构官员提供咨询的预防疾病服务工作组(The Preventative Services Task Force)说，对身体健康的男子而言，一种叫做PSA的简单验血可能弊大于利。
PSA, a simple blood test, is most likely to cause harm than provide benefit for a healthy man, said a group who provides consulting to U.S. health offcials called "The Preventative Services Task Force"
