Microbial contamination (colony forming units = CFUs) of the surface of the tablet computer was determined twice every day, before initial and after final usage (100 users in 11 days).
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Samples were taken from three defined regions of interest (ROIs; ROI A = central touchscreen, ROI B = home button and its adjacent area, ROI C = upper central backside).Microbial contamination (colony forming units = CFUs) of the surface of the tablet computer was determined twice every day, before initial and after final usage (100 users in 11 days).
创建时间：
2015-12-02
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