Retest positive for SARS-CoV-2 RNA in pregnant women recovered from COVID-19.
C ZanardiniB SaccaniL FranceschettiS ZattiE SartoriFederico PrefumoPublished in: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology (2020)