Olmedillas, Hugo
Gonzalez-Agüero, Alejandro
Rapún-López, Marta
Gracia-Marco, Luis
Gomez-Cabello, Alba
Pradas de la Fuente, Francisco
Moreno, Luís A.
Casajús, José A.
Vicente-Rodríguez, Germán
Article History
Received: 19 July 2017
Accepted: 17 November 2017
First Online: 3 February 2018
Compliance with ethical standards
: Written informed consent was obtained from parents and adolescents. The study was performed following the ethical guidelines of the Declaration of Helsinki 1961 (2000 Edinburgh revision). The Ethics Committee of Clinical Research for the Government of Aragón (CEICA; Spain) approved the study protocol.