Again, remember to be flexible and creative with your search terms!
For researching public health campaigns and health communication, you could try:
Or for broader understandings of PSAs, advertising, media, and/or visual rhetoric, you might try these terms:
It's unlikely that you will find research directly related to your chosen persuasive campaign. But it may exist; you could still check on the website of your campaign or its sponsoring organization or agency. (Look for links to areas such as "About" or "Resources.")
Search for scholarly research about persuasive campaigns using these databases:
If you're using GoogleScholar from off-campus, watch this video on how to link your Google search to Hekman Library to activate the Full-Text@Hekman service:
Youtube Video - How to Link Google Scholar to Hekman Library
Use this handout to help you know how to search for bibliographic citations: