4 calls to drupal_deliver_page()

drupal_access_denied in includes/common.inc: Delivers an "access denied" error to the browser.
drupal_not_found in includes/common.inc: Delivers a "page not found" error to the browser.
drupal_site_offline in includes/common.inc: Delivers a "site is under maintenance" message to the browser.
menu_execute_active_handler in includes/menu.inc: Execute the page callback associated with the current path.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.