Does the perception of health related quality of life (hrql) in children with juvenile idiopathic arthritis (JIA) change among different cultures? - Gutierrez-Suarez, R.; Cespedes, A.; Ravelli, A.; Prieur, A. M.; Machado, C.; Murray, K.; Susic, G.; Rumba, I; Nielsen, S.; Tsakalidou, F. K.; Harjacek, M.; Nikishima, I; et al. (Wiley-Blackwell, 2005)