To err is human: patient misinterpretations of prescription drug label instructions.
Wolf MS, Davis TC, Shrank WH, et al. To err is human: patient misinterpretations of prescription drug label instructions. Patient Educ Couns. 2007;67(3):293-300.
This study discovered that misunderstanding of dosage instructions is common, especially among those with limited literacy, so improving the simplicity and language of drug labels would be an effective intervention.