The search textbox has an autosuggest feature. When you enter three or more characters,
a list of up to 10 suggestions will popup under the textbox. Use the arrow keys
to move through the suggestions. To select a suggestion, hit the enter key. Using
the escape key closes the listbox and puts you back at the textbox. The radio buttons
allow you to toggle between having all search items start with or contain the text
you entered in the search box.
smokeless tobacco
Tobacco that is not smoked but used in another form such as chewing tobacco or snuff. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
