@inbook{1166461076, author={Rupsa C. Boelig and Vincenzo Berghella}, editor={Jain, Lucky and Suresh, Gautham K.}, title={Preterm Labor}, booktitle={Clinical Guidelines in Neonatology}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1166461076} }