1. Publ. no.: 02-3659;National Institutes of Health National Heart, LungBlood Institute,2002
2. Juniper EF, Guyatt GH, Ferrie PJ, et al. Measuring quality of life in asthma. Am Rev Respir Dis 1993; 147: 832–8
3. Kaptein AA, Brand PL, Dekker FW, et al. Quality-of-life in a long-term multicentre trial in chronic non-specific lung disease: assessment at baseline: the Dutch CNSLD Study Group. Eur Respir J 1993; 6: 1479–84
4. Marks GB, Dunn SM, Woolcock AJ. An evaluation of an asthma quality of life questionnaire as a measure of change in adults with asthma. J Clin Epidemiol 1993; 46: 1103–11
5. Rutten-van Mölken MPMH, Custers F, Van Doorslaer EKA, et al. Comparison of performance of four instruments in evaluating the effects of salmeterol on asthma quality of life. Eur Respir J 1995; 8: 888–98