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OBJECTIVE To better estimate the burden of toxic cigarette butt waste and create awareness of the hazardous nature of cigarette butts on two large university campuses in San Diego by organizing and conducting student cigarette butt clean-up activities. METHODS Two separate campus-wide clean-ups were conducted by student volunteers at San Diego State(More)
BACKGROUND Few studies assessing the relationship between active and passive smoking and tuberculosis have used biomarkers to measure smoke exposure. We sought to determine the association between active and passive smoking and LTBI in a representative sample of US adults and children. METHODS We used the 1999-2000 US National Health and Nutrition(More)
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