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.
negative test result (NEH-guh-tiv ... reh-ZULT)
|A test result that shows that a person does not have the disease, condition, or biomarker for which the test is being done. A negative test result usually means that the test result is normal, but it does not mean that a person will never get the disease or condition. More testing may be needed to make sure a negative test result is correct.|