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This document also gathers resources to assist in building and implementing DIY air cleaners and describes other considerations that might be relevant to deploying these devices in real-world settings
"This recently came into my possession
For example, a study looking at self-reported smoking history among patients diagnosed with lung cancer in registries from the University of Texas Southwestern Medical Center, Parkland Hospital, and Vanderbilt University showed that the proportion of cases in patients who have never smoked almost doubled from 8.0% in 1990-1995 to 14.9% in 2011-2013
Michael Small: They were asked to record an unplugged episode
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