@incollection{Amer21,
author = {Amin Amer and Mohamed Amer and Hagar Nofal},
title = {Botulinum Toxin for the Face},
booktitle = {Cosmetic Surgery},
publisher = {IntechOpen},
address = {Rijeka},
year = {2021},
editor = {Yueh-Bih Tang},
chapter = {3},
doi = {10.5772/intechopen.94495},
url = {https://doi.org/10.5772/intechopen.94495}
}