Fentanyl for the Relief of Refractory Breathlessness: A Systematic Review Steffen T. Simon, MD, MSc, Peyla Köskeroglu, Jan Gaertner, MD, Raymond Voltz, MD Journal of Pain and Symptom Management Volume 46, Issue 6, Pages 874-886 (December 2013) DOI: 10.1016/j.jpainsymman.2013.02.019 Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions
Fig. 1 Flow of information through the review process. Journal of Pain and Symptom Management 2013 46, 874-886DOI: (10.1016/j.jpainsymman.2013.02.019) Copyright © 2013 U.S. Cancer Pain Relief Committee Terms and Conditions