@incollection{Friese12,
author = {Wolf Kirschner and Klaus Friese},
title = {Strategies in the Prevention of Preterm Births During and Before Pregnancy},
booktitle = {Preterm Birth},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {John C. Morrison},
chapter = {11},
doi = {10.5772/28484},
url = {https://doi.org/10.5772/28484}
}