School tobacco policies and adolescent smoking in six European cities in 2013 and 2016: A school-level longitudinal study
| Autor: | Mélard, Nora, Grard, Adeline, Robert, Pierre-Olivier, Kuipers, Mirte A.G., Schreuders, Michael, Rimpelä, Arja H., Leão, Teresa, Hoffmann, Laura, Richter, Matthias, Kunst, Anton E., Lorant, Vincent |
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| Zdroj: | In Preventive Medicine September 2020 138 |
| Databáze: | ScienceDirect |
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