@incollection{Farr17,
author = {Sebastián Torres Farr},
title = {Resistance to Botulinum Toxin in Aesthetics},
booktitle = {Neurotoxins},
publisher = {IntechOpen},
address = {Rijeka},
year = {2017},
editor = {J. Eric McDuffie},
chapter = {6},
doi = {10.5772/intechopen.70851},
url = {https://doi.org/10.5772/intechopen.70851}
}