@inbook{1116802460,
author={Klaus Wolff and Richard Allen Johnson and Arturo P. Saavedra},
title={Introducción},
booktitle={Fitzpatrick. Atlas de Dermatología Clínica, 7e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2015},
url={accessmedicina.mhmedical.com/content.aspx?aid=1116802460}
}