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Vaginal progesterone, a hormone treatment considered the standard of care for preventing preterm birth in at-risk pregnant women, may not be effective, according to UT Southwestern Medical Center researchers.

United statesJeffrey mcdonaldKaitlyn eckertDonald mcintireEmily hendersonDavid nelsonAshlyn laffertyChinmayee venkatramanPaulc macdonaldCatherine spongUt southwestern medical centerAmerican college of obstetriciansSociety for maternalParkland healthMedical centerStudy leader