20-30, ADULT, AEROSOL, ALONE, AN, ASTHMA, BRONCHODILATOR, BRONCHOPNEUMOPATHY, BSIP, COLLANGES, COPD, DEFICIENCY, DOSE, DRUG, EUROPEAN, FEMALE, HUMAN, INHALATION, INHALER, INTERIOR, MEDICATION, MEDICINE, METERED, PERSON, RESPIRATORY, TREATMENT, USING, WOMAN, YEARS,