【摘 要】
：
Aim Provide a scientific basic for a unified standard of the reference value of Forced Expiratory Flow(FEF) of healthy subjects from 19 to 45years old in China.Methods The normal reference value of FE
【机 构】
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Shaanxi Normal University
【出 处】
：
中华医学会呼吸病学年会——2013第十四次全国呼吸病学学术会议
论文部分内容阅读
Aim Provide a scientific basic for a unified standard of the reference value of Forced Expiratory Flow(FEF) of healthy subjects from 19 to 45years old in China.Methods The normal reference value of FEF was correlated to seven geographical factors, including altitude(X1), annual sunshine duration (X2), annual mean air temperature (X3), annual mean relative humidity (X4), annual precipitation amount (X5), annual range of air temperature (X6) and annual mean wind speed (X7).
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