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In a study funded by a pro-legalization group, the researchers recognized that debates about cannabis policy often mention respiratory symptoms as a negative consequence of use, thereby serving as a stumbling block in pro-legalization efforts

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Researchers with the radiology department at Ottawa Hospital in Canada studied CT scans of marijuana smokers, people who only smoked cigarettes, and nonsmokers

Who knows how things actually went down, but it sure is fun when guided by an old fashioned, wide-eyed story teller

Pack years quantify smoking exposure over time and help measure the cumulative impact of smoking on health