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Boumparis, Nikolaos and de Riedmatten, Philippe and Champion, Katrina and Cea, Gloria and de Pablo-Pardo, Teresa and Koutra, Kleio and Rizvi, Katie and Pearce, Hayley and Triantafyllidis, Andreas and Molina-Barceló, Ana and Schaub, Michael Patrick and Haug, Severin (2026) Behavior change techniques in digital health interventions for promoting adolescent health behaviors: systematic umbrella review. JMIR Mental Health , 13 .