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Because chrysotile fibers are cleared from lung more rapidly than amphibole, fiber assays should not be used for chrysotile-only exposures

Unexpectedly smooth: Beginners are often surprised that such a rich smoke doesnt burn the throat

Aim for 'firm but springy.' Step 3: Placing the Cigarette Tube This step is simple but vital

This narrative review synthesizes current evidence on the physiological and behavioral consequences of vaping in youth

We cant just turn our heads and ignore it, says Elizabeth Brassell, a spokeswoman for the Pennsylvania Department of Revenue

Witness History is for those fascinated by and curious about the past