The smaller airways ( 2 mm in diameter) offer small resistance in normal lungs but end up being the major site of obstruction in chronic obstructive pulmonary disease (COPD). in the encompassing lung as FEV1 declined, but eight genes previously connected with COPD elevated expression in Col13a1 the encompassing lung cells. Our study implies that… Continue reading The smaller airways ( 2 mm in diameter) offer small resistance