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Beller, Johannes, Enrique Regidor, Lourdes Lostao, Alexander Miething, Christoph Kröger, Batoul Safieddine, Fabian Tetzlaff, Stefanie Sperlich, und Siegfried Geyer. "Decline of Depressive Symptoms in Europe: Differential Trends Across the Lifespan." Soc Psychiatry Psychiatr Epidemiol 2020.

Beller, Johannes, et al. "Decline of Depressive Symptoms in Europe: Differential Trends Across the Lifespan." Soc Psychiatry Psychiatr Epidemiol 2020.