title: Use of the double decidual sac sign and intradecidual sign.
authors.forename: Hsu-chong
authors.initials: HC
authors.lastname: Yeh
mesh_terms: D003656:Decidua / Q000000981:diagnostic imaging*; D003951:Diagnostic Errors / Q000517:prevention & control*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal