To be valid, the study needs to examine e-cigarette smokers who have not tried these products before and are trying them for the first time in an attempt to quit smoking. Otherwise, the study cannot truly claim to draw conclusions about how helpful e-cigarettes are for smoking cessation among cancer patients.

Well, consider that by banning smoking at all private clubs but creating an exemption for the city's Banquet Hall, it could potentially establish a competitive advantage for the city-owned facility over private facilities in competition for business from people looking for venues for celebrations.

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