NK Cells Promote Fetal Growth (image) Cell Press Share Print E-Mail Caption An artistic representation of how decidual NK cells promote fetal growth during early pregnancy. Credit Binqing Fu Usage Restrictions Credit Required. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.