@inbook{1147926696, author={Donald Venes}, title={Scotometry - Second-Impact Syndrome, Second Impact Syndrome}, booktitle={Taber's® Cyclopedic Medical Dictionary, 23e}, publisher={F.A. Davis Company}, address={New York, NY}, year={2017}, url={fadavispt.mhmedical.com/content.aspx?aid=1147926696} }