K Vongvitat

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Spirometry and outcome of 96 cases who were clinically diagnosed as having COPD were studied. Ninety-two cases had significant airway obstruction. Of these 92 cases, initial bronchodilator responses were evaluated in 73 cases. Twenty-six cases were responders (CRAO), while 47 cases were nonresponders (COPD). The average median survival of the whole group(More)
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