These databases contain newspaper articles, magazine articles, and scholarly (peer-reviewed) articles in many subjects. Narrow your search using limiters like date, subject terms, or type of source until you have a relatively small group of really-focused articles that help you answer your research question.
Listen the npr story titled, "The Vitamin C Myth" or read the transcript here. Notice the experts mentioned, new keywords, and other resources to which they refer.
Listen the npr story titled, "Sepsis Is A Global Killer. Can Vitamin C Be The Cure?" or read the transcript here. Notice the experts mentioned, new keywords, and other resources to which they refer.