You will be using E-books for your research - simply because they have the most recent publishing dates. Your research should be within the last 5 years only. Older publications do not reflect the most up to date information in the health field.
Click on one of the e-book links below to access a search box for e-books. Create a list of search terms and experiment using them to search for relevant materials. You may also use the many limiters provided by the search mechanism. Different e-book databases use different limiter systems so you will have to look around on each site. Fine tune your search by selecting additional specific subjects- which many times are already listed after you perform a general search. Some limiters include date range, geographic locations, related subjects.