{TAIL ~ Antibodies} of {HEAD ~ the invention} can be used to assay OmpA levels in a biological sample using classical serological and immunohistological methods as described herein or as known to those of skill in the art 
{ TAIL ~ Antibodies } of { HEAD ~ the invention } can be used to assay OmpA levels in a biological sample using classical serological and immunohistological methods as described herein or as known to those of skill in the art
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