Methods Negative expiratory pressure technique was performed in 13 special COPD patients who did not accomplish routine pulmonary function tests.

  • 方法采用呼气负压技术检测13例不能完成常规肺功能检查的COPD患者呼气流速受限。

  • 互联网摘选 2025-01-20 13:34:41

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