title: Diurnal variation of respiratory function independent of air quality: experience with an environmentally controlled exposure chamber for human subjects.
mesh_terms: D000328:Adult; D000392:Air Movements; D000397:Air Pollution; D000403:Airway Resistance; D000704:Analysis of Variance; D001273:Atmosphere Exposure Chambers; D002940:Circadian Rhythm; D004780:Environment, Controlled; D004781:Environmental Exposure; D006801:Humans; D008297:Male; D008396:Maryland; D010993:Plethysmography, Whole Body; D012119:Respiration; D012129:Respiratory Function Tests; D013147:Spirometry; D014797:Vital Capacity