目的 The new Global initiative for obstructive lung disease(GOLD)stratification of chronic obstructive pulmonary disease(COPD)into categories A,B,C,and D is based on symptom,level of lung function,and h
目的 The purpose of the study is to observe the capacity of progesterone(PROG)to reverse the corticosteroid insensitivity and todetect its synergistic effects with glucocorticoids in protecting against