There are several online databases which contain information pertaining to cases involving medical ethics.
Combine key words that describe your particular case with the subject headings each database uses to describe medical ethics.
Below are examples of general codes of ethics.
Many medical specialities also have ethics codes. Locate these by doing a search for the medical specialty and "code of ethics."
Search these news resources for examples of specific cases by using key terms relating to the topic. For example if you would like an example of a case dealing with assisted suicide of a terminally ill patient, search using terms such as "end of life," "terminal illness," and "ethics."