3M. E. Hyland,S. J. Singh,S. C. Sodergren,M. P. L. Morgan. Development of a Shortened Version of the Breathing Problems Questionnaire Suitable for Use in a Pulmonary Rehabilitation Clinic: A Purpose-Specific, Disease-Specific Questionnaire[J] 1998,Quality of Life Research(3):227~233
4M. E. Hyland,J. Bott,S. Singh,C. A. P. Kenyon. Domains, constructs and the development of the breathing problems questionnaire[J] 1994,Quality of Life Research(4):245~256