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. 2020 May 17;10(14):6517–6529. doi: 10.7150/thno.44274

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(A) Higher sensitivity of the established dual-layer PERFECT filter system (80.0%) than that of the cytocentrifuge (45.0%). (B) The specifically lung cancer positive and negative case numbers of all 33 samples with the dual-layer PERFECT filter system and the cytocentrifuge. (C) The sensitivities of all the three graded turbidity samples with the dual-layer PERFECT filter system are higher than those with cytocentrifuge. (D) The sensitivities of all the lung cancer types with the dual-layer PERFECT filter system are higher than those with the cytocentrifuge. (E-G) The ETC clusters and ETCs circled with red dashed lines on the upper-layer PERFECT filer, lower-layer PERFECT filer and the slide after centrifugation. Scale bars represent 100 μm in E-G.