Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

Passive sampling has emerged as a versatile approach for monitoring gaseous air pollutants by relying on molecular diffusion rather than active pumping. Common formats include diffusive tubes, radial ...

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Nosocomial infections are infections that are acquired while at a health care facility and are not present at the time of admission. Nosocomial infections are many times also called hospital acquired ...