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4.Their exposure ranged from 105-420μg/m~3.FVC,FEV_1 Significant declines were demon- strated among them Stepwise regression analysis indicated that diisoc- yanate exposure was one of significant predictors of FVC,FEV_1,V_(25), V_(25)/HT.
5.Conclusion Minimum reflux and aspiration are found when the head angle is at 30°,when at left recumbent positions,and when at a feeding speed of 10 ml/min.
