We analysed the influence of aging on each parameter of ventilatory function with the method of cross-sectionstudy.
以横向年龄分组的方法分析了年龄对通气功能各参数的影响。
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Methods The exploration of DM and other associated diseases in 3717 Chongqing citizens over 20 years old was done by oral glucose tolerance test (OGTT) in a cross-sectionstudy.
The results are based on the findings of a two-year study of a cross-section of the British population, which examined the effects of ageing on the cardiovascular system.