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use strict;
use warnings;
...

    return $orig;
}

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<citref idrefs="cit5c cit5d cit5Es">5<it>c</it>,5<it>d</it>,5<it>Es</i
+t></citref>
<qwerty alrefs="xad5c xad5d xad5Es">5<it>c</it>,5<it>d</it>,5<it>Es</i
+t></qwerty>