[Prevention of twin collision using ultrasound in the first phase of labor].
Stanojević
D
D
Sretenović
Z
Z
Hajrić
A
A
D005260:Female; D006801:Humans; D007747:Labor Stage, First; D007744:Obstetric Labor Complications / Q000517:prevention & control*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D016216:Ultrasonography, Prenatal