相比于只着眼于日常吸烟量，这可能更有助于对烟草毒素暴露程度的估计。
This may help estimating levels of tobacco exposure more than just looking at the usual daily cigarette consumption.
相比于只着眼于日常吸烟量，这可能更有助于对烟草毒素暴露程度的估计。
This may help estimating levels of tobacco exposure more than just looking at the usual daily cigarette consumption.
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