The role of the FEF50%/0.5FVC ratio in the diagnosis of obstructive lung diseases.
Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia（2010）
摘要
The FEF50%/0.5FVC ratio is a potentially useful parameter in the differential diagnosis of OLD and correlates positively with the FEV1/FVC ratio.
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