Analyzing the keys to the design of a mobile application for physical activity for school and out-of-school use from the perspective of adolescents, teachers, coaches, managers, and experts - Adrián Mateo-Orcajada; Lucía Abenza-Cano; Pedro Ángel López-Miñarro; Lourdes Meroño; Ana María Gallardo-Guerrero; María de la Trinidad Morales-Belando; Noelia González-Gálvez; Alejandro Espeso-García; Tomás Abelleira-Lamela; Nerea Gómez-Cuesta; Antonio Joaquín García-Velez; Mario Albaladejo-Saura; et al. (PLoS ONE, 2025)