document.write( ' <p><span>Previous：</span><a href="../News/n51.html" title="Double-drug strategy blocks escape route for most lung cancers">Double-drug strategy blocks escape route for most lu...</a></p><p><span>Next：</span><a href="../News/n49.html" title="New male birth control pill is safe but does it work?">New male birth control pill is safe but does it work...</a></p> ')