One of the first steps in conducting secondar research is creating a keyword list that includes as many relevant words or terms for your subject of research. Using a thesaurus is an excellent way to find relevant terms that might be used by professionals in any field of expertise. This webpage from the National Library of Medicine is a thesaurus for medical terminology. Just type a word in the search box to find a list of medical terms that are relevant to your topic. Remember to add the terms to your keyword list!