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. 2024 Mar 22;14:6912. doi: 10.1038/s41598-024-54939-4

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© The Author(s) 2024, corrected publication 2024

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(A) Sample slide for dropping the sputum sample (B) Mini-microscope system for visualization and imaging of the air-dried sputum sample. (C) The main device and closed view (C-1) of the mini-microscope. (D) Exploded view of the designed mini-microscope for sputum analysis. (E) Placing the smartphone on the mini-microscope and imaging the sputum sample as well as its analysis by the (F) AI-based application.