Persons who used inhaled or oral corticosteroids during \>5 years, or within the last 5 years.

FEV1 \<1.2 L

Upper respiratory tract infection (e.g. colds), within 2 months.

Pregnancy, or the possibility of being pregnant (i.e. women who do not use adequate anticonception as judged by the investigator).

Malignancy within the past 5 years (except for squamous or basal cell carcinoma of the skin that has been treated with no evidence of recurrence).

Signs or symptoms of any other concomitant disease that, in the eyes of the investigator, can interfere with the study results.

Known recent substance abuse (drug or alcohol).

Claustrophobia.

A Study to Obtain Normal Values of Inflammatory Variables From Healthy Subjects