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

PSBR is

Protonated Schiff Base of Retinal

More Meanings For PSBR:

Proximal Small Bowel Resection
Protonated Schiff Base of Retinal
Pennsylvania Society for Biomedical Research
Public Sector Borrowing Requirement
Public Sector Borrowing Requirements

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