Most of these databases have options to limit your search results to full text and scholarly (peer-reviewed) journals. Be sure to check those options so you can limit results to journal articles you can read in full!
(DOAJ) Collection of 12,000 open access journals with full text "covering all areas of science, technology, medicine, social science and humanities." Created by Lund University in Sweden, DOAJ journals adhere to high standards and peer review.
(ProQuest) Full-text from an international collection of scholarly journals, trade and industry journals, magazines, technical reports, conference proceedings, government publications, and more.
(GALE) Gale OneFile: Health and Medicine contains up-to-date information on the complete range of health care topics. With embargo-free, full-text periodicals, reference books, pamphlets, and hundreds of videos demonstrating medical procedures and live surgeries, Gale OneFile: Health and Medicine ensures that researchers get current, scholarly, comprehensive answers to health-related questions.
So try an Advanced Search and enter one keyword or phrase per line. You should see a big difference in the number of results:
Without limiters checked, we have 210 results. After setting our limiters, we go down to 42 results. Fewer to sort through, and they fulfill our journal and date requirements:
This is an example of an abstract that is not a primary research article:
And here's an example of one that is a primary research article. Notice words like "results," "the aim of this study," and "methods/design."