If your topic has no listing in the subject index, use MeSH to see if a heading has been assigned. The MeSH terms are placed in alphabetical order followed by the journal article citations indexed to them. The articles indexed to each MeSH term are subdivided by subheading. For example, diseases will be subdivided by subheadings like diagnosis, epidemiology and therapy. Specific drugs will have subheadings such as adverse effects, toxicity, and poisoning.
Medical reviews are articles which discuss a body of research on a subject.