The history of smallpox
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PII: S0738-081X(05)00170-7
doi:10.1016/j.clindermatol.2005.11.009
© 2006 Elsevier Inc. All rights reserved.
PII: S0738-081X(05)00170-7
doi:10.1016/j.clindermatol.2005.11.009
© 2006 Elsevier Inc. All rights reserved.