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JHU and Realm of Caring Announce National Cannabis Study With Veriheal Our understanding of medical cannabis is set to expand

The airways remain more sensitive and more prone to contraction, and episodes of breathing discomfort tend to occur more frequently

September 21, 2012

The flag of Australia, cigarette as a symbol of the harm caused by smoking

Sample size and participants The sample size was calculated according to a rate of smoking in the last 12 months of 34% in the control group based on data from the ESTUDES 20162017 survey 4 and assuming a 20% rate in the intervention group, with an alpha level of 0.05 and 80% statistical power, giving a total of 141 students per group necessary

The magnitude of this effect on our health is not trivial, as polluted air is recognized by many health experts as a source of significant morbidity and mortality in the world