Example of a broad topic: "artificial organs"
Also consider selecting a specific population group: age and/or gender.
“artificial heart” AND “complications” AND “elderly”
Resources cited in the article - Resources that cite the article
Once you find a good resource, such as an article relevant to your topic, a good strategy is to mine its list of references for additional useful resources. This process is called “backward chaining”. You can also do “forward chaining” to identify those who have cited the article you found. This way you search backwards and forwards in time for related resources. One resource links you to another, which links you to another, and so on to create a chain of relevant literature.
Citation chaining is especially useful for writing a literature review since it helps you follow chains of related sources.
Tip: articles published in the last few years might be too recent to have any other articles citing them.