Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym PCNA is...

PCNA is

Proliferating Cell Nuclear Antigen

More Meanings For PCNA:

Peter Cremer North America
Pollination Constant Non Astringent
Proliferating Cell Nuclear Antigen
Publishing Company of America, Inc.
Preventive Cardiovascular Nurses Association

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