1. Treatment of postherpetic neuralgia: a review of therapeutic options Charles E. Argoff, MD, Nathaniel Katz, MD, Miroslav Backonja, MD Journal of Pain and Symptom Management Volume 28, Issue 4, Pages 396-411 (October 2004) DOI: 10.1016/j.jpainsymman.2004.01.014 Copyright © 2004 U.S. Cancer Pain Relief Committee Terms and Conditions Terms and Conditions

2. Fig. 1 Journal of Pain and Symptom Management 2004 28, 396-411DOI: (10.1016/j.jpainsymman.2004.01.014) Copyright © 2004 U.S. Cancer Pain Relief Committee Terms and Conditions Terms and Conditions

3. Fig. 2 Journal of Pain and Symptom Management 2004 28, 396-411DOI: (10.1016/j.jpainsymman.2004.01.014) Copyright © 2004 U.S. Cancer Pain Relief Committee Terms and Conditions Terms and Conditions

4. Fig. 2 Journal of Pain and Symptom Management 2004 28, 396-411DOI: (10.1016/j.jpainsymman.2004.01.014) Copyright © 2004 U.S. Cancer Pain Relief Committee Terms and Conditions Terms and Conditions