Interrelation Between Bronchial Asthma and Smoking

"collect serum sample from each group and detection of serum periostin and eotaxin-2 are using Eliza kits.~each group is divided into two groups (patients who are already using ICS and patients who do not use ICS) and we compare between to groups in airway hypersensitivity."

each group is divided into two groups (patients who are already using inhaled corticosteroid ICS and patients who do not use ICS) and we compare between to groups in airway hypersensitivity.