1. Episodic and Continuous Breathlessness: A New Categorization of Breathlessness 
Steffen T. Simon, MD, MSc, Irene J. Higginson, BM, BS, BMedSci, PhD, FFPHM, FRCP, Hamid Benalia, BSc, MA, Marjolein Gysels, PhD, Fliss E.M. Murtagh, PhD, MRCGP, MSc, James Spicer, FRCP, PhD, MB, BS BA, Claudia Bausewein, PhD, MD, MSc 
Journal of Pain and Symptom Management 
Volume 45, Issue 6, Pages (June 2013)
DOI: /j.jpainsymman
Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions

2. Fig. 1
Relationship between EB and CB. The uneven surface of the blue box should illustrate the variable intensity of continuous breathlessness (please refer the online version for colors). EB=episodic breathlessness; CB=continuous breathlessness.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions

3. Fig. 2
Categorization of breathlessness by time and triggers based on patients' experiences. EB=episodic breathlessness; CB=continuous breathlessness.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions

4. Fig. 3 Main categories of breathlessness.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions