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Your body traps and expels these particles, resulting in black snot or dark, grainy sputum

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Archived from the original on February 3, 2012

Causes and Risk Factors: Genetic Factors: Inherited Genetic Mutations: Some congenital conditions are caused by specific gene mutations that are passed down from parents to their children

This review allows researchers to initiate systematic analyses of e-liquids and aerosols to allow for a better understanding of the effects of such products