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Correspondence to Dr Nick H T ten Hacken; n.h.t.ten.hacken@umcg.nl ABSTRACT Introduction: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease with pulmonary and extra-pulmonary(More)
Problematic substance use and mental health problems often co-occur in adolescents. Effective school-based interventions that are brief and target multiple problems are promising in the field of(More)
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