Nanchev L, Petrov S
Vutr Boles. 1976;15(3):41-6.
The results from the spirometric investigations of pulmonary function in comparable grpis pf 28 smokers and 37 non-smokers at the age of 20 are presented. Positive obstructive changes were established to be present in the lungs of the smokers (smoked about 20 cigarettes daily in the course of four years and more); they were varified by the essential decrease of FEO1, MRFR200-1200, MAEFR25-75, EFR25 and EFR10. MMV50 is decreased with a critical statistical significance.
呈现了对28名吸烟者和37名20岁非吸烟者的可比组进行肺功能肺活量测定调查的结果。已确定吸烟者（在四年及更长时间内每天吸食约20支香烟）的肺部存在阳性阻塞性改变；这些改变通过FE01、MRFR200 - 1200、MAEFR25 - 75、EFR25和EFR10的显著降低得到证实。MMV50降低具有临界统计学意义。
