controlled smoking 控制熏制
Most devastatingly, however, there are no randomized, double-blinded placebo controlled clinical trials that compare the success of quitting smoking by using smokeless tobacco versus using a placebo.
然而，极具讽刺的是，通过使用无烟烟草戒烟与使用安慰对照组相比，临床对照控制组没有进行随机的双盲试验。
The results indicated that in intervention group the diet sodium decreased. The diet potassium increased, smoking rate decreased and the people who controlled the total diet amount increased.
结果表明：干预组对象膳食钠减少、膳食钾增加、吸烟人数下降、控制食物总摄入量人数上升；
The same results were obtained when the smoking factor was controlled.
当控制吸烟因素后，仍得同样结果。
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