The video questionnaire: one approach to the identification of the asthmatic phenotype.
Beasley
R
R
Wellington Asthma Research Group, Department of Medicine, Wellington School of Medicine, Wellington South, New Zealand.
Lai
C K
CK
Crane
J
J
Pearce
N
N
D001249:Asthma / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics; D006801:Humans; D010641:Phenotype; D011795:Surveys and Questionnaires; D014743:Videotape Recording