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<div class="abstract-content selected" id="enc-abstract">
<p>Secondary bile acids (BAs) and short chain fatty acids (SCFAs), two
major types of bacterial metabolites in the colon...
</p>

 #<div class="abstract-content selected" id="enc-abstract">
            
...
        #        ->map( sub{ $_->text } );
        #         #->map( sub{ s|\n| |gr } );
        #         print "Abstract is: $abstr\n\n";