@inbook{1194458712, author={Dan L. Longo}, editor={Kasper, Dennis}, title={HER2-Directed Immunotoxin for Breast Cancer with Low HER2 Expression}, booktitle={Harrison's Online Updates}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accesspharmacy.mhmedical.com/updatesContent.aspx?gbosid=598410} }