Homa , Mannino , Lara , 2000 ) Certain allergens , such as cockroach , mouse , or rat , may be more potent sources of allergic or non-allergic airway inflammation , or environmental cofactors such as community stress may increase vulnerability to the effects of these exposures in sensitized individuals and since mostly people having such living conditions are likely to belong to urban areas and also minorities (as explained earlier . Maternal Cigarette Smoking The respiratory health effects of smoking have been well documented . Maternal cigarette smoking is...











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