Prevention of cold-induced asthma by conditioning the inspired air.
D000403:Airway Resistance; D001249:Asthma / Q000517:prevention & control*; D001250:Asthma, Exercise-Induced / Q000517:prevention & control*; D003080:Cold Temperature / Q000009:adverse effects*; D005541:Forced Expiratory Volume; D006801:Humans; D008397:Masks; D013548:Sweden