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These inflammatory cells, factors, and mediators interact to form a complex network that stimulates mucous cell metaplasia, mucus secretion, fibroblast growth and extracellular matrix protein (ECM) synthesis, airway constriction and induces AHR and airway remodeling 5-9 .In recent years, studies have found that Th17 is also essential in the pathogenesis of asthma and is closely related to the recruitment of airway neutrophils 10

the criticisms directed at those who disagreed

Chemical composition E-cigarettes and traditional cigarettes differ significantly in their chemical composition

Socio-demographic characteristics of the participants in the intervention and control groups