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Jean P
Patient proper history was taken and subjected to spirometry for evaluation of lung function on the basis of above inclusion and exclusion criteria. Pulmonary function test was performed in sitting position by uniem. Before recording the Pulmonary Function Tests, subjects were shown demonstration of the tests. Subjects were asked to begin relaxed tidal breathing through the mouth piece and then to take a deep breathe in. Immediately after this the subject was asked to blow out as hard and fast as possible and to continue blowing for six seconds