User:Scmohr/Antibiotic-res cat page2

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Revision as of 15:02, 28 July 2008 by Scmohr (Talk | contribs) (New page: This will be a test of the new style of page. [[Image:250px-Penicillin-core.png|frame|left|The general formula of a member of the penicillin family of antibiotics. Different penicillins ...)

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This will be a test of the new style of page.

The general formula of a member of the penicillin family of antibiotics. Different penicillins have different chemical groups at the position marked "R."