@incollection{Helal19,
author = {Ahmed Abdelghaffar Helal},
title = {Principles of Fetal Surgery},
booktitle = {Pediatric Surgery, Flowcharts and Clinical Algorithms},
publisher = {IntechOpen},
address = {Rijeka},
year = {2019},
editor = {Sameh Shehata},
chapter = {1},
doi = {10.5772/intechopen.85883},
url = {https://doi.org/10.5772/intechopen.85883}
}