Point to an example in my article in which the author(s) do one of the following:

• refer to another work to give legitimacy to their own point;
• refer to another work to build upon the ideas of others; or
• refer to another work to challenge its argument.

Explain in two sentences how this reference to another's work contributes to my confidence in the value of the article and helps me to form my own ideas about the facts.

My topic is: The effect of pets on owners' mental health.

My research question is: To what extent does pet ownership influence the mental health of owners, and through what mechanisms?

The article: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-018-1613-2