Co-Authors Plus: Pulling author meta data

gistfile1.php

<?php $coauthors = get_coauthors(); ?>
<?php foreach( $coauthors as $coauthor ) : ?>

<?php if ( get_user_meta( get_the_coauthor_meta( 'ID' ), 'user_tw', true ) ) { 
  $twitter_username = get_user_meta( get_the_coauthor_meta( 'ID' ), 'user_tw', true); 
?>
							        
<a href="https://twitter.com/<?php echo $twitter_username; ?>" class="twitter-follow-button" data-show-count="false">Follow @<?php echo $twitter_username; ?></a><script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>

<?php } ?>	
<?php endforeach; ?>