Validated questionnaires should not be modified.
Juniper
E F
EF
Dept of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada. juniper@qoltech.co.uk
D001249:Asthma / Q000523:psychology / Q000628:therapy*; D002648:Child; D003466:Cultural Characteristics; D006801:Humans; D007802:Language; D010290:Parents; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D012107:Research Design; D011795:Surveys and Questionnaires / Q000592:standards*; D013997:Time Factors; D016896:Treatment Outcome