title: Failure of physiologic transformation of the spiral arteries of the uteroplacental circulation in patients with preterm labor and intact membranes.
authors.forename: Roger A
authors.initials: RA
authors.lastname: McMaster-Fay
mesh_terms: D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000503:physiopathology*; D010920:Placenta / Q000098:blood supply* / Q000000981:diagnostic imaging; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D016216:Ultrasonography, Prenatal