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However, marijuana that is smoked is often unfiltered, which can potentially lead to more damaging particles entering the airways and lungs. All groups were compared to nonsmokersand those who smoked both were found to be 12 times more likely to have centrilobular emphysema, which can lead to difficulty breathing, coughing, and other respiratory symptoms

During the Tar Derby's push for filtered cigarettes, the micronite filter was introduced to block tar from entering the body, using asbestos

They may need to reassess your treatment plan or explore other potential causes

You may notice the gums have a strange pigmentation

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