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Interpretation of quality of life scores from the St George's Respiratory Questionnaire
M. Ferrer, C. Villasante, J. Alonso, V. Sobradillo, R. Gabriel, G. Vilagut, J.F. Masa, J.L. Viejo, C.A. Jiménez-Ruiz, M. Miravitlles
European Respiratory Journal 19 (3) 405-413; DOI: 10.1183/09031936.02.00213202 Published 1 March 2002