Condition effect is an important source of non-sampling error in continuous surveys with matched samples.
条件的影响是有匹配样本的连续调查特有的计量误差来源。
U. S. health officials said Friday that some cases of the virus in the United States matched samples of the deadly Mexican virus.
美国卫生官员说，在美国有部分病毒样本和致命的墨西哥猪流感相匹配的病例。
In this study, the authors analyzed a database of ultrasound-guided liver biopsies performed from 1995 to 2008, and identified 255 breast cancer patients with matched primary and liver tissue samples.
在这项研究中，作者分析了1995 - 2008年间超声指导下肝活检的资料，发现了255例同时有原发灶和肝转移灶标本的乳腺癌病人。
Methods Human brain tissue samples were obtained at autopsy from 15 patients with HIH and 7 age-matched controls.
方法人脑组织标本来自15例尸检hih患者和7例非神经系统疾病死亡的尸检作为对照。
Methods Human brain tissue samples were obtained at autopsy from 15 patients with HIH and 7 age-matched controls.
方法人脑组织标本来自15例尸检hih患者和7例非神经系统疾病死亡的尸检作为对照。
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