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File:PenicillinPSAedit.jpg

Description A poster attached to a curbside mailbox offering advice to World War II servicemen: Penicillin cures gonorrhea in 4 hours.
Date circa 1944
Source http://ihm.nlm.nih.gov/images/A20824
Author Unknown
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Public domain This image is in the public domain because it contains materials that originally came from the National Institutes of Health.
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