Full Papers

Cross-cultural adaptation and psychometric evaluation of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ) in 32 countries. Review of the general methodology

N. Ruperto, A. Ravelli, A. Pistorio, C. Malattia, S. Cavuto, L. Gado-West, A. Tortorelli, J.M. Landgraf, G. Singh, A. Martini, for the Paediatric Rheumatology International Trials Organisation (PRINTO)