It is possible that even peer reviewed literature has some bias.

A citation is required to support a claim by authors of a primary research article. Which source is least appropriate?

Patients prescribed aspirin therapy require education regarding the signs of aspirin toxicity. An early sign of aspirin toxicity is: 

You found an interesting article in a science magazine claiming the importance of a vitamin. What is the most important red flag that the article might not be trustworthy?

When prescribing acyclovir, patients should be educated regarding the: 

To prevent the development of peripheral neuropathy in patients taking isoniazid for tuberculosis, the patient is also prescribed: 

A child presents with one golden-crusted lesion at the site of an insect bite consistent with impetigo. Their parents have limited finances and request the least expensive treatment. Which medication would be the best choice for treatment? 

Antacids treat GERD by: 

A researcher discovers that protein X is important in fly-eye development and uses the fly as a model for human eye development. Other researchers find that protein X is not found in humans. The original study lacks:

The treatment goals when treating urinary tract infection (UTI) include: