my $ean = GetNormalizedEAN($record,$marcflavour);
my $oclc = GetNormalizedOCLCNumber($record,$marcflavour);
my $isbn = GetNormalizedISBN(undef,$record,$marcflavour);
-my $content_identifier_exists = 1 if ($isbn or $ean or $oclc);
+my $content_identifier_exists = 1 if ($isbn or $ean or $oclc or $upc);
$template->param(
normalized_upc => $upc,
normalized_ean => $ean,