Exercise as medicine in chronic diseases during childhood and adolescence Julio Alvarez-Pitti; José A. Casajús-Mallén; Rosaura Leis-Trabazo; Alejandro Lucía; Diego López de Lara; Luis A. Moreno-Aznar; Gerardo Rodríguez-Martínez;

Current situation of central nervous system tumour survivors in a spanish hospital Ivonne Marcela Rincón-Mantilla; Blanca Herrero; Elena Herranz Valero; Fernando Robles-Bermejo; Alba Herrera-Olivares; Felisa Vázquez-Gómez; Álvaro Lassaletta;

Factors associated with a low level of physical activity in adolescents from La Rioja (Spain) Raúl Jiménez Boraita; Esther Gargallo Ibort; Josep María Dalmau Torres; Daniel Arriscado Alsina;