It takes about 2 to 4 years after smoking cessation before one's risk goes back down to that of someone who never smoked.
大约需要2至4年之后戒烟之前的风险追溯到到谁的人从不吸烟。
It takes about 2 to 4 years after smoking cessation before one's risk goes back down to that of someone who never smoked.
大约需要2至4年之后戒烟之前的风险追溯到到谁的人从不吸烟。
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