Changes of ventilatory function amongst smokers and non-smokers.
D000328:Adult; D002940:Circadian Rhythm; D005500:Follow-Up Studies; D006801:Humans; D007194:India; D008297:Male; D010947:Plants, Toxic; D012123:Pulmonary Ventilation; D012119:Respiration; D012129:Respiratory Function Tests; D012907:Smoking; D013997:Time Factors; D014026:Nicotiana