($ipairs{$fk}{$dline}{'head'}, $ipairs{$fk}{$dline}{'effect'}, $ipairs{$fk}{$dline}{'pvalue'}) = $ldata{$dline} =~ /^(.*)\s+(\d\.\d+)\s+\d\.\d+\s+(\d\.\d+)$/;

##</code><code>##

	( @{ $ipairs{$fk}{$dline} }{qw/head effect pvalue/} ) = $ldata{$dline} =~ /^(.*)\s+(\d\.\d+)\s+\d\.\d+\s+(\d\.\d+)$/;

##</code><code>##

	$pvt = $ipairs{$fk}{$pair};
	if($pvt->{'pvalue'}){
		unless($hl){
			$hl = $pvt->{'head'};
		}
		$n++;
		$z+= qnorm($pvt->{'pvalue'});
	}