tynitenaire
tynitenaire
29.06.2019 • 
English

Hich source would provide the most bias-free information about second hand smoke as a trigger of asthma? a) an advertisement by an air-purifying systems corporation b) an editorial by an asthma sufferer pushing for a ban on public smoking c) a pamphlet from a tobacco company about the dangers of secondhand smoke d) a brochure from the respiratory information council at johns hopkins university

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