... participated in the drafting of the article All authors contributed to a critical Page of revision of the manuscript and made a substantial contribution to its content, and read and approved the final manuscript ... Palacio-Vieira JA, Herdman M, Lopez-Aguila S, Villalonga-Olives E, Valderas JM, Espallargues M, Alonso J: Effect on health- related quality of life of changes in mental health in children and adolescents ... (UPF), Barcelona, Spain Authors’ contributions JMV, LR, and JA participated in the conception and design of the study EVO, SRF, GV and JAPV analyzed the data EVO, JMV, MH, MF, LR and JA participated...