Baseline characteristics of the subjects completing the 12-month follow-up.
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资源简介：
€ EuroQol final question, ranging from 1 (feel very bad) to 10 (perfectly healthy). This item had 56 missing values. Ψ Cigars or tobacco chewing. Ω Nicotine patch or gums. φ More than one answer allowed. ¥ Years of former tobacco smoking for e-cigarette only smokers. P<0.01 for the comparison * Tobacco only vs electronic cigarettes only ** Tobacco only vs dual smoking *** E-cigarettes only vs dual smoking. Baseline characteristics of the subjects completing the 12-month follow-up.
创建时间：
2015-12-03
