Duplicate Page Rendering with Drupal_Access_Denied

I have encountered a problem previously identified in node 122234 that seems to arise from calling drupal_access_denied inside a page template. The header and side bars of the page are rendered, and then the entire page (including header and sidebars) are rendered again in the page body. No solution to this problem was provided in node 122234. If an anonymous user tries to access certain pages, I want to give them an access denied error and present the login page. How do I do this from inside a page or node template if not with drupal_access_denied?

Thanks.