@incollection{Varella18,
author = {Marco Varella and Eloisa Fernandes and Jonas Arantes and Tiziana Acquaviva and 
Tania Lucci and Rafael Hsu and Vinicius David and Vera Bussab and Jaroslava
Valentova and Nancy Segal and Emma Otta},
title = {Twinning as an Evolved Age-Dependent Physiological Mechanism: Evidence from Large Brazilian Samples},
booktitle = {Multiple Pregnancy},
publisher = {IntechOpen},
address = {Rijeka},
year = {2018},
editor = {Julio Elito Jr.},
chapter = {2},
doi = {10.5772/intechopen.79907},
url = {https://doi.org/10.5772/intechopen.79907}
}