U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Shingles (herpes zoster): signs and symptoms. [Last updated: Jul 2019; Accessed: Jan 2021]
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U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Shingles (herpes zoster): signs and symptoms. [Last updated: Jul 2019; Accessed: Jan 2021]