To receive LitAlerts—notifications of newly added references for any Category of HBOC LitLists—by email, choose your Categories from this list (only the main Categories, not subcategories). Use "Back" to return this page, then go to this form to indicate your choice(s) and sign up for notifications. WARNING: If you choose "All HBOC" and a Category, all the references received for the Category will be duplicated from the "All HBOC" notification.