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"These days a lot of the customers are very knowledgeable themselves, so to be able to engage them and teach them something new is important," Wong said

With the descriptive analysis, we explored the relationship between the changes in the student's social norm group concerning the change in their friends

Three years ago, researchers at Portland State University in Oregon conducted a study that found previously unknown forms of formaldehyde in the vapor of electronic cigarettes (e-cigarettes)

This is the level at which oxygen deprivation could occur

Really, back then nobody knew what we know today." In large part that's because the tobacco industry maintained for years that experts still disagreed about the evidence, Brandt says