DOI:
10.1055/s-00000059
Pneumologie
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References
Zhao Z, Zhang M, Wu J. et al.
E-cigarette use among adults in China: findings from repeated cross-sectional surveys in 2015-16 and 2018-19.
Lancet Public Health 2020;
5: e639-e649
DOI: 10.1016/S2468-2667(20)30145-6.
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