Clinico-spirometrical correlation of newly detected COPD patients with known tobacco smoking exposure or biomass smoke exposure presenting to a teaching institution in Vadodara, Gujarat

对古吉拉特邦瓦多达拉市一家教学机构就诊的新确诊慢性阻塞性肺疾病（COPD）患者，进行临床肺功能测定，以评估其与已知吸烟史或生物质燃料烟雾暴露史的相关性。