@inbook{1175095174, author={Jason Emer and Heidi A. Waldorf}, editor={Avram, Marc R. and Avram, Mathew M. and Ratner, Désirée}, title={Fillers}, booktitle={Procedural Dermatology}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={dermatology.mhmedical.com/content.aspx?aid=1175095174} }