Improving the quality of child and youth mental health care through an implementation science lens. - Dumke, Lars; Hall, Jennifer; Jung, Jenny; Sibilio, Raffaella; Beinerte, Karina; Beļikova, Rimma; Mavreas, Venetsanos; Stylianidis, Stelios; Azzopardi-Muscat, Natasha; Lazeri, Ledia; Oldenburg, Brian; Breda, João (Frontiers in Health Services, 2026)