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Habitual smoking of marijuana is associated with multiple respiratory symptoms such as cough, sputum production , and wheezing .These symptoms are not significantly different from those exhibited by tobacco smokers. Furthermore , endobronchial biopsies of habitual smokers of marijuana and /or tobacco have shown that both marijuana and cigarette smoking(More)
Pulmonary hypertension (PH) is a chronic, progressive, life-threatening disease that requires expert multidisciplinary care. To facilitate this level of care, the Pulmonary Hypertension Association established across the United States a network of pulmonary hypertension care centers (PHCCs) with special expertise in PH, particularly pulmonary arterial(More)
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