@inbook{1199565693,
title={Ophthalmic, Otic, and Oral Agents},
booktitle={Top 100 Nonprescription Drugs: Challenge},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2019},
url={accesspharmacy.mhmedical.com/content.aspx?aid=1199565693}
}