1. Descriptors of Breathlessness in Patients With Cancer and Other Cardiorespiratory Diseases 
Andrew Wilcock, DM, FRCP, Vincent Crosby, MRCGP, Andrew Hughes, MRCGP, Katherine Fielding, PhD, Ray Corcoran, FRCOG, Anne E Tattersfield, MD, FRCP 
Journal of Pain and Symptom Management 
Volume 23, Issue 3, Pages (March 2002)
DOI: /S (01)

2. Fig. 1
Dendrogram resulting from the hierarchial cluster analysis of descriptors of breathlessness in 261 patients. Moving from left to right, the shorter the distance is before the descriptors combine, the more similar they are. For key to descriptors see Table 4.
Journal of Pain and Symptom Management  , DOI: ( /S (01) )